38. Cost of production: The cost to produce bottled spring water is given by C(x) = 16x + 63, wherer is the number of thousands of bottles. The total income (revenue) from the sale of these bottles is given by the function R(x) =Pal+ 326x - 7337. Since profit - revenue - cost. the profit function must be P(x) - -x + 310x - 7400 (verify). How many bottles sold will produce the maximum profit? What is the maximum profit