Fiona is trying to prove that a pair of expressions are equivalent by using substitution. Which pair of expressions have the same value if she substitutes y = 3?

A. 3 (4 minus y) minus 7; 5 + 3 y
B. 9 + y + 4 y - 2 - 3 y; -2 y + 7
C. 5 + y - 2 - 6 y + y; 8 y + 3
D. 2 y + 7 + y - 2 + y; 4 y + 5

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?