The table gives the volumes of two similar right circular cylinders. Cylinder A has volume 72π cubic units, and cylinder B has volume 4608π cubic units.
The table shows the volume of two similar solids, right circular cylinder A and right circular cylinder B. The radius of right circular cylinder A is 3 units. The surface area of right circular cylinder A is kπ square units, and the surface area of right circular cylinder B is nπ square units, where k and n are constants. What is the value of n−k? (The surface area of a right circular cylinder with radius r and height h is 2πr2+2πrh.)