Answer:
m<A = 35
m<B = 55
Step-by-step explanation:
Complementary angles mean the 2 angles add up to 90 so:
y - 16 + y + 4 = 90
2y - 12 = 90
2y = 102
y = 51
m<A:
y - 16
51 - 16
35
m<B:
y + 4
51 + 4
55
