10/12= $.83 per inch
20/18= $1.11 per inch
What you have to do is look at all the measurements (ft) and they are labeled. And some of the sides that aren't labeled have clues of what they could be. So when I added, I got 78 ft for my answer.
4x²+x³
Factor is out x³ expression
The answer is :

Carry learning!
Answer:
C
Step-by-step explanation:
Since the cross section is constrained to be perpendicular to the base, the shape of it is constrained to be a ...
Rectangle
_____
That rectangle may be a square, but is not required to be.