Answer:
y = -3× - 1
Step-by-step explanation:
the explanation is in the picture, hope this helped!
10ax - 5ay + 2bx - by
=10ax + 2bx - 5ay - by
=2x(5a + b ) - y(5a + b )
=(2x - y )(5a +b)
Answer 1 = 20790in
Answer 2 = volume
Answer 3 = (what are we - by?)
A= a^2+2a\square root{\frac{a^2}{4}}+h^2
a=base=8
h=height=7
A=surface area
A=177