Your question seems to be incomplete
The height is 5.
Since V=Base*height, I just divided the volume by the base.
175/35
=5
So the height would be 5. You can check to see if it's true by multiplying 35*5, which gives you 175.
A is the answer, because 3/5=.60 and 37.5/62.5=60
So, i will give the point slope form and then you can sole it out.
Using point (4,1) and (3,4)
SLOPE: 4-1/3-4=3/-1=-3
Using (4,1)
y-1=-3(x-4)
Then you have to isolate y