A merchant wants to create a rectangular display area in front of her store. The area is to be enclose by fencing on three sides that cost $12 per foot and fencing on one side costs $25 per foot. She has $2000 to spend for the cQnstruction of the fence. What dimensions should she use for the fence that would maximize the area enclosed? y

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A: Given perimeter of fencing = 150 meters w = x  l = 150 - 2x   we know area of rectangle = length*…

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A: Here it is the application of derivatives.

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