Answer:
9u^3 + 6u^2 - 7u + 6
Step-by-step explanation:
It would be c. 12 inches
H = V/lw
The Length * Width = 450
and the volume is 5400
So 5400/450 = 12
Hope that helps!
The answer is 72 (--> second choice).
I can prove it without calculator so you believe me:

I believe the answer is x=0
Answer: 5. x=33, y= 33, z=114
Step-by-step explanation: the triangles and supplementary lines all add to 180, so find one of them, and use that one to find the others