Answer:
Step-by-step explanation:

rewrite those 2 terms to better see what they have in common

because, 4*7 =28, 4*2=8, u³*u² =u^5, and multiplication is commutative
The greatest common factor is:

Answer:
18.75 ft
Step-by-step explanation:
The given scenario can be drawn as shown in the following attachment.
Given that,
and 
Therefore, 


ft
AB is the height of the house.
Answer:
y = -x + 3
Step-by-step explanation:
I believe that it would be 13, unless you were trying to make the 9 negative. Hope that helps.