Answer:
B. x = 20, y = 128
Step-by-step explanation:
( 3x - 8 ) and ( 2x + 12 ) are vertically opposite angles.
Vertically opposite angles are equal.
3x - 8 = 2x + 12
3x - 2x = 12 + 8
x = 20
( 3x - 8 ) + y = 180 ( Reason : Linear pair )
3 ( 20 ) - 8 + y = 180
60 - 8 + y = 180
52 + y = 180
y = 180 - 52
y = 128
