Hercules wrapped 1/3 of a present in 1/9 of an hour find the rate in presents per hour

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.)

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

The volume of a box varies directly with its length if a box in the group has a length of 30inches and k=24 what is its volume