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QUESTION 3 The cost to produce x items is given by C (x) =ev* - 12x - S1 - and the demand is given by p (x) = 5x + In(x2+ 5x) - (Round answers to the nearest cent) (a) Find the marginal cost when x = 9. $ (b) Find the average cost when x = 9. $ (c) Find the marginal average cost when x = 9. $ (d) Find the marginal revenue when x = 9. $ (e) Find the marginal profit P'(x)=R'(x)-C'(x) when x = 9. $ Show your work separately and submit using the link in the Exam tab of HuskyCT