Answer:
42
Step-by-step explanation:
Hey There!
Angle 3 and Angle 4 are a pair of supplementary angles meaning that added together they will equal 180
So if angle 4 is given to find angle 3 all we have to do is subtract the angle that is given from 180
180-138=42
Therefore angle 3 = 42
A, because its reflecting off of the y axis
I have proof links, and I took the test
see image
I think answer is 87<180 or maybe 87<12*15
E D C are the answers for the questions
