Can someone help me please

Find the sum of the following series. round to the nearest hundredth if necessary.

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.)

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.