Question: For Questions 4-5, solve the following word problems. A pebble is dropped into a calm pond, causing ripples in the form of concentric circles. The

For Questions 4-5, solve the following word problems.

A pebble is dropped into a calm pond, causing ripples in the form of concentric circles. The radius of the outer ripple is increasing at a constant rate of 1 foot per second. When the radius is 4 feet, at what rate is the total area of the disturbed water changing? The formula for the area of a circle is A= r² Keep your answer exact or round to one decimal place.

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