Show Steps: the raidius of a sphere is increasing at the rate of 3 inches per minute. a) find the rate of change of the volume when the radius oft he spehere is 12 inches. Indicate units of measure (for a sphere V = 4/3pier^3)
b) Find the rate of change of the surface area of the sphere when the radius is 18 inches. Indicate units of measure. (For a sphere A= 4 pie r^2)