(x Points: 0 of 1 Sav K The total cost (in dollars) of producing x food processors is C(x) = 1600 +80x - 0.3x2. (A) Find the exact cost of producing the 51st food processor. (B) Use the marginal cost to approximate the cost of producing the 51st food processor. (A) The exact cost of producing the 51st food processor is $ The total cost (in dollars) of manufacturing x auto body frames is C(x) = 90,000 + 400x. (A) Find the average cost per unit if 200 frames are produced. (B) Find the marginal average cost at a production level of 200 units. (C) Use the results from parts (A) and (B) to estimate the average cost per frame if 201 frames are (A) If 200 frames are produced, the average cost is $ per frame The profit (in dollars) from the sale of x lawn mowers is P(x) = 90x - 0.09x- 350. (A) Find the average profit per mower if 20 mowers are produced. (B) Find the marginal average profit at a production level of 20 mowers, and interpret the results. (C) Use the results from parts (A) and (B) to estimate the average profit per mower if 21 mowers are produced. (A) If 20 mowers are produced, the average profit per mower is S (Round to the nearest cent as needed.)