URGENT PLEASE HELP ME
label based on the concept of angle bisector

Angles marked with a red arc, one marked with 48 degrees:

Both of these angles are equal to 48 degrees, as shown by them having the same lines and the concept of angle bisector. An angle bisector divides an angle into two equal angles.

Where the blue markings are and x equals:

These angles are also equal, but we will first need to solve for x.

24 = 3x - 12

3x = 36

x = 12

3x - 12 = 24 (plug in 24 for the label)

Hope this helps!! :)