Answer:
its B an C
Step-by-step explanation:
I think its
270 and -90
a) 1
b)11
c)4
d)1
I hope it helps you...
96-28 68
y = 42
18 - y = -24
18 + 24 - y = 0
18 + 24 = y
18 + 24 = 42
i think