A rectangle, presumably, as the cross section is going to be whatever shape the outward faces are (in the case of a vertical cross section like this one)
111.1 is the answer to the question
It should go like this:
(4z + 3) (3z - 4) / (3z - 4) (z + 2)
Then you just cancel out (3z -4) and (3z -4), and the final simplified form of this polynomial is:
(4z +3) / (z + 2)
2250
50*(2+100)/2
50*102/2
50*51
2250
Solution: 7.5 Degrees per hour
Reasoning: 15/2 is equal to 7 1/2 or 7.5
