cm/min when the height is 7 m Sand falls from a conveyor belt at a rate of 12 m /min onto the top of a conical pile. The height of the pile is always three-eighths of the base diameter. How fast are the height and the radius changing when the pile is 7 m high? Answer in centiméters per minute. The height is changing at a rate of (Type an exact answer, using n as needed.) The radius is changing at a rate of cm / min when the height is 7 m. (Type an exact answer, using n as needed.)

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