Solve each problem. Include labels on each answer. a) A rock thrown into a still pond causes a circular ripple. i) At a certain moment, the radius of the ripple is 8 feet and is increasing at 1.5 ft/sec. At that same moment, what is the rate of change of the area of the circular ripple? ii) At a certain moment, the area of the ripple is increasing at 100 ft²/sec and the radius is increasing at 3 ft/sec. What must the radius of the ripple be at that same moment?

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