Which of the following questions are true? select all correct answers. (picture attached)

Volume of a cylinder with a radius of 13 in and height of 30 in

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.)

Which function has the same domain as y=2x