<em>there are 208 cups in 13 gallons.</em>
The fromula of a slope:

We have the points
and 
Substitute:

<h3>Answer: slope is undefined.</h3><h3 />
It's a vertical line: 
Volume=pi*r squared*h
Volume=pi* 2 squared*3
volume=pi*4*3
volume=pi*12
volume=12pi
Answer is first one. 12pi
Length = 7width - 2
perimeter = 2 width + 2 length
96 = 2 width + 2 (7width -2)
96 = 2 width + 14 width - 4
100 = 16 width
then width = 6.25 cm and length = 7(6.25) - 2 = 41.75 cm