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A lake with a surface area of 4000 acres is evaporating at a rate of 112...

A lake with a surface area of 4000 acres is evaporating at a rate of 112 acre-ft/day (an acre-ft is simply the volume of water obtained if you were to fill an acre up to a depth of a foot). Estimate the depth change in the lake in ft after a year if the net inflow to the lake is 30 cfs. Is the depth increasing or decreasing?

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