8a A rectangular plot of land is to be fenced in using two kinds of fencing. Two opposite sides will use heavy-duty fencing selling for $3 afoot, while the remaining two sides will use standard fencing selling for $2 a foot. What are the dimensions of the rectangular plot ofgreatest area that can be fenced in at a cost of $7200?ift of heavy-duty fencingift of standard fencing HintAssistance U:Find an expression for the area in terms of one of the width or height. Then use the following procedure.A Procedure for Finding the Absolute Extrema of a Continuous Function f on a Finite Closed Interval [a, b].Step 1. Find the critical points of f in [a, b].Step 2. Evaluate f at all the critical points and at the endpoints a and b.Step 3. The largest of the values in Step 2 is the absolute maximum value of f on [a, b] and the smallest value is the absoluteminimum.

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A rectangular plot of land is to be fenced in using two kinds of fencing. Two opposite sides will use heavy-duty fencing selling for $3 a foot, while the remaining two sides will use standard fencing selling for $2 a foot. What are the dimensions of the rectangular plot of greatest area that can be fenced in at a cost of $7200? ft of heavy-duty fencing ft of standard fencing