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All edges of a cube are expanding at a rate of 7 centimeters per second. (a) How fast is the surface area changing when each edge is 2 centimeters? (b) How fast is the surface area changing when each edge is 10 centimeters?

All edges of a cube are expanding at a rate of 7 centimeters per second. (a) How fast is the surface area changing when each edge is 2 centimeters? (b) How fast is the surface area changing when each edge is 10 centimeters?

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All edges of a cube are expanding at a rate of 7 centimeters per second. (a) How fast is the surface area changing when each edge is 2 centimeters? (b) How fast is the surface area changing when each edge is 10 centimeters?

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