Question

My teacher refuses to teach me please help..

I have 8 questions that are mostly similar to this, can someone help me step by step so i can pass this.

Answer 1

Answer: x=30

Step-by-step explanation:

The sum of the angles must be 360.

4x+3x+3x+2x = 12x

12x = 360

x =360/12 = 30