Answer:
33
Step-by-step explanation:
8-21
9- -16 i think lemme do the next ones
Answer:
7.5
Step-by-step explanation:

True
4x^2 -16x +16 = (2x -4)^2
A = 2x
B = 4
Answer:
I would say 42 but some of the image is cut off so I may be wrong:))
Step-by-step explanation: