Andrew is an ecologist investigating a pond. He notices that an algal bloom is growing in the pond. The outside edge of the growth is roughly circular, and Andrew estimates when the radius of the bloom is 40 m, it is growing at a rate of 3mm/min. a. At what rate is the area covered in m/s covered by the algae increasing at this time b. the area assumes increases at a constant rate, at what rate is the radius increasing 5 h later?

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