Solve for y.
A. 12
B. 13.5
C. 9
D. 10.5

Answer: C
Step-by-step explanation:
180° = 96° + 8y + 12
180° = angles on a straight line
180 - 96 - 12 = 8y
8y = 180 - 96 - 12
8y = 72
y = 72 / 8
y = 9