Question 492119
Your question was incomplete, but I believe it is one I have seen a few minutes ago.

if angle x and angle y are complementary, and angle x and angle z are supplementary, which of the following is true?
a - angle x + angle z = 270
b - 2(angle x) = angle y + angle z
c - angle z - angle x = 90
d - angle z - angle y = 90
e - angle y + angle z = 180


The answer is D, If you subtract the complement of an angles supplement you will obtain 90 degrees.

Cleomenius.