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Suppose that the total profit in hundreds of dollars from selling x items is given by P(x) =2x- -6x + 10. Complete parts a through d below. a. Find the average rate of change of profit as x changes from 2 to 4. $ per item b. Find the average rate of change of profit as x changes from 2 to 3. per item c. Find and interpret the instantaneous rate of change of profit with respect to the number of items produced when x =2. (This number is called the marginal profit at x = 2.) s per item What does this result mean? Choose the correct answer below. O A. When 2 items are sold, the profit is decreasing at the rate of $ per item. O B. When items are sold for $ , the profit is decreasing at the rate of $2 per item. O C. When 2 items are sold, the profit is increasing at the rate of $ per item O D. When items are sold for $ , the profit is increasing at the rate of $2 per item. d. Find the marginal profit at x = 4. $ per item Time Remaining: 00:36:12