The quadratic graph crosses the y-axis at -3, so the equation is

The shaded region is on 'outer' part of the graph, hence the inequality is
You get a simplified version like the answer in picture. Hope this helped.
Hey! Here you are, hope this helps...
Formula: π*r^2*h
r = 6 r^2 = 36
h = 24
π*36*24 = V
V = 2714.336 ft^3
The answer is 5, then you double check to make sure the solution is correct
5 = 15(3) - 40
5 = 45 - 40
5 = 5