If the radius of the smaller sphere is 3 inches and the radius of the larger sphere is 6 inches, how many times greater is the volume of the larger sphere?

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

What is the measure of angle tvu shown in the diagram below