Question

Question was provided via image upload.

Explanation:

Step1: Identify quadrant of 150°

150° is in the second quadrant (90° < 150° < 180°).

Step2: Apply reference angle rule for Q2

Reference angle = 180° - angle.

Step3: Substitute angle value

Reference angle = 180° - 150° = 30°, so expression is 180° - x.

Answer:

A. 180° - x