diff --git a/app/Http/Controllers/GradeController.php b/app/Http/Controllers/GradeController.php
index f5f5df3..c998e75 100644
--- a/app/Http/Controllers/GradeController.php
+++ b/app/Http/Controllers/GradeController.php
@@ -12,7 +12,8 @@ class GradeController extends Controller
 {
     public function __construct(
         protected ServiceInterface $service,
-    ){}
+    ) {
+    }
 
     /**
      * Display a listing of the resource.
@@ -46,7 +47,7 @@ class GradeController extends Controller
     public function show(Grade $grade): View
     {
         return view('grades.show', [
-            'grade' =>  $grade,
+            'grade' => $grade,
         ]);
     }
 
diff --git a/app/Http/Controllers/StudentController.php b/app/Http/Controllers/StudentController.php
index d8fd103..fa76501 100644
--- a/app/Http/Controllers/StudentController.php
+++ b/app/Http/Controllers/StudentController.php
@@ -13,7 +13,8 @@ class StudentController extends Controller
 {
     public function __construct(
         protected ServiceInterface $service
-    ){}
+    ) {
+    }
 
     /**
      * Display a listing of the resource.
diff --git a/app/Http/Controllers/SubjectController.php b/app/Http/Controllers/SubjectController.php
index a8911b3..58e670f 100644
--- a/app/Http/Controllers/SubjectController.php
+++ b/app/Http/Controllers/SubjectController.php
@@ -12,7 +12,8 @@ class SubjectController extends Controller
 {
     public function __construct(
         protected ServiceInterface $service,
-    ){}
+    ) {
+    }
 
     /**
      * Display a listing of the resource.
@@ -20,7 +21,7 @@ class SubjectController extends Controller
     public function index(): View
     {
         return view('subjects.index', [
-            "subjects" => $this->service->getAll(),
+            'subjects' => $this->service->getAll(),
         ]);
     }
 
@@ -49,7 +50,7 @@ class SubjectController extends Controller
     public function show(Subject $subject): View
     {
         return view('subjects.show', [
-            "subject" => $subject
+            'subject' => $subject,
         ]);
     }
 
diff --git a/app/Http/Controllers/SubjectTeacherController.php b/app/Http/Controllers/SubjectTeacherController.php
index 609c773..1cb6fcc 100644
--- a/app/Http/Controllers/SubjectTeacherController.php
+++ b/app/Http/Controllers/SubjectTeacherController.php
@@ -13,7 +13,8 @@ class SubjectTeacherController extends Controller
 {
     public function __construct(
         protected ServiceInterface $service,
-    ){}
+    ) {
+    }
 
     public function create(Teacher $teacher): View
     {
@@ -25,7 +26,7 @@ class SubjectTeacherController extends Controller
 
     public function store(SubjectTeacherPostRequest $request, Teacher $teacher): RedirectResponse
     {
-        return redirect()->route('teachers.show',  $this->service->create($request->validated(), $teacher));
+        return redirect()->route('teachers.show', $this->service->create($request->validated(), $teacher));
     }
 
     public function edit(Teacher $teacher, Subject $subject): View
diff --git a/app/Http/Controllers/TeacherController.php b/app/Http/Controllers/TeacherController.php
index 1a18cce..f82ffda 100644
--- a/app/Http/Controllers/TeacherController.php
+++ b/app/Http/Controllers/TeacherController.php
@@ -12,7 +12,8 @@ class TeacherController extends Controller
 {
     public function __construct(
         protected ServiceInterface $service
-    ){}
+    ) {
+    }
 
     /**
      * Display a listing of the resource.
diff --git a/app/Http/Requests/StudentPostRequest.php b/app/Http/Requests/StudentPostRequest.php
index 71bc504..132c34d 100644
--- a/app/Http/Requests/StudentPostRequest.php
+++ b/app/Http/Requests/StudentPostRequest.php
@@ -2,8 +2,6 @@
 
 namespace App\Http\Requests;
 
-use App\Enums\RoleEnum;
-use Illuminate\Contracts\Validation\ValidationRule;
 use Illuminate\Foundation\Http\FormRequest;
 
 class StudentPostRequest extends FormRequest
diff --git a/app/Http/Requests/TeacherPostRequest.php b/app/Http/Requests/TeacherPostRequest.php
index 932d7d5..e3aea8a 100644
--- a/app/Http/Requests/TeacherPostRequest.php
+++ b/app/Http/Requests/TeacherPostRequest.php
@@ -2,8 +2,6 @@
 
 namespace App\Http\Requests;
 
-use App\Enums\RoleEnum;
-use Illuminate\Contracts\Validation\ValidationRule;
 use Illuminate\Foundation\Http\FormRequest;
 
 class TeacherPostRequest extends FormRequest
diff --git a/app/Models/Student.php b/app/Models/Student.php
index 7e97ab8..43844ae 100644
--- a/app/Models/Student.php
+++ b/app/Models/Student.php
@@ -2,12 +2,13 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\MorphOne;
-use Illuminate\Database\Eloquent\Builder;
+
 class Student extends Model
 {
     use HasFactory;
@@ -33,7 +34,7 @@ class Student extends Model
     public function scopeFilter(Builder $query): void
     {
         $name = request('name');
-        $query->when($name, function (Builder $query, $name){
+        $query->when($name, function (Builder $query, $name) {
             $query->whereRaw('CONCAT (name, \' \', surname, \' \', patronymic) ilike ?', ["$name%"]);
             $query->orWhereRaw('CONCAT (name, \' \', patronymic, \' \', surname) ilike ?', ["$name%"]);
             $query->orWhereRaw('CONCAT (surname, \' \', name, \' \', patronymic) ilike ?', ["$name%"]);
@@ -46,7 +47,7 @@ class Student extends Model
     public function fio(): Attribute
     {
         return Attribute::make(
-            get: fn () => $this->last_name . " " . $this->name . " " . $this->middle_name,
+            get: fn () => $this->last_name.' '.$this->name.' '.$this->middle_name,
         );
     }
 }
diff --git a/app/Models/Teacher.php b/app/Models/Teacher.php
index c5cbf24..f18c015 100644
--- a/app/Models/Teacher.php
+++ b/app/Models/Teacher.php
@@ -2,12 +2,13 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Database\Eloquent\Relations\MorphOne;
-use Illuminate\Database\Eloquent\Builder;
+
 class Teacher extends Model
 {
     use HasFactory;
@@ -37,7 +38,7 @@ class Teacher extends Model
     public function scopeFilter(Builder $query): void
     {
         $name = request('name');
-        $query->when($name, function (Builder $query, $name){
+        $query->when($name, function (Builder $query, $name) {
             $query->whereRaw('CONCAT (name, \' \', surname, \' \', patronymic) ilike ?', ["$name%"]);
             $query->orWhereRaw('CONCAT (name, \' \', patronymic, \' \', surname) ilike ?', ["$name%"]);
             $query->orWhereRaw('CONCAT (surname, \' \', name, \' \', patronymic) ilike ?', ["$name%"]);
@@ -50,7 +51,7 @@ class Teacher extends Model
     public function fio(): Attribute
     {
         return Attribute::make(
-            get: fn () => $this->last_name . " " . $this->name . " " . $this->middle_name,
+            get: fn () => $this->last_name.' '.$this->name.' '.$this->middle_name,
         );
     }
 }
diff --git a/app/Services/GradeService.php b/app/Services/GradeService.php
index 38ad047..6ab6453 100644
--- a/app/Services/GradeService.php
+++ b/app/Services/GradeService.php
@@ -8,7 +8,6 @@ use Illuminate\Pagination\LengthAwarePaginator;
 
 class GradeService implements ServiceInterface
 {
-
     public function getAll(): LengthAwarePaginator
     {
         return Grade::filter()->paginate(5)->withQueryString();
diff --git a/app/Services/StudentService.php b/app/Services/StudentService.php
index ac4d0b0..6aafb74 100644
--- a/app/Services/StudentService.php
+++ b/app/Services/StudentService.php
@@ -3,9 +3,7 @@
 namespace App\Services;
 
 use App\Models\Student;
-use App\Models\Teacher;
 use App\Models\User;
-use Illuminate\Database\Eloquent\Model;
 use Illuminate\Pagination\LengthAwarePaginator;
 
 class StudentService implements ServiceInterface
diff --git a/app/Services/SubjectService.php b/app/Services/SubjectService.php
index c857584..6687465 100644
--- a/app/Services/SubjectService.php
+++ b/app/Services/SubjectService.php
@@ -8,7 +8,6 @@ use Illuminate\Pagination\LengthAwarePaginator;
 
 class SubjectService implements ServiceInterface
 {
-
     public function getAll(): LengthAwarePaginator
     {
         return Subject::filter()->paginate(5)->withQueryString();
diff --git a/app/Services/SubjectTeacherService.php b/app/Services/SubjectTeacherService.php
index c0dbe93..d5ea630 100644
--- a/app/Services/SubjectTeacherService.php
+++ b/app/Services/SubjectTeacherService.php
@@ -9,7 +9,7 @@ use Illuminate\Database\Eloquent\Model;
 
 class SubjectTeacherService implements ServiceInterface
 {
-    public function getAll(Teacher $teacher = null): Collection
+    public function getAll(?Teacher $teacher = null): Collection
     {
         return $teacher->subjects;
     }
@@ -19,14 +19,14 @@ class SubjectTeacherService implements ServiceInterface
         return Subject::all();
     }
 
-    public function create(array $data, Model $model = null): Teacher
+    public function create(array $data, ?Model $model = null): Teacher
     {
         $model->subjects()->syncWithoutDetaching($data['subject_id']);
 
         return $model;
     }
 
-    public function update(Model $model, array $data, Model $subject = null): Teacher
+    public function update(Model $model, array $data, ?Model $subject = null): Teacher
     {
         $model->subjects()->detach($subject->id);
         $model->subjects()->attach($data['subject_id']);
@@ -34,7 +34,7 @@ class SubjectTeacherService implements ServiceInterface
         return $model;
     }
 
-    public function delete(Model $model, Model $subject = null): Teacher
+    public function delete(Model $model, ?Model $subject = null): Teacher
     {
         $model->subjects()->detach($subject);
 
diff --git a/app/Services/TeacherService.php b/app/Services/TeacherService.php
index 374c995..ea04740 100644
--- a/app/Services/TeacherService.php
+++ b/app/Services/TeacherService.php
@@ -2,7 +2,6 @@
 
 namespace App\Services;
 
-use App\Models\Student;
 use App\Models\Teacher;
 use App\Models\User;
 use Illuminate\Pagination\LengthAwarePaginator;