Zx and Zy are supplementary angles. Zy measures 142º.
What is the measure of Zx?

Answer:
Supplementary angles means the sum will be 180 degrees. So since Zx = 142 degrees, allow: 180 = 142 + Zy. So, 180 - 142 = 38 degrees = Zy.
Step-by-step explanation: