The profit (in dollars) from the sale of x lawn mowers is P(x) = 60x - 0.06x- - 550. (A) Find the average profit per mower if 50 mowers are produced. (B) Find the marginal average profit at a production level of 50 mowers, and interpret the results. (C) Use the results from parts (A) and (B) to estimate the average profit per mower if 51 mowers are produced. (A) If 50 mowers are produced, the average profit per mower is $ (Round to the nearest cent as needed.)