A manufacturer believes that the cost function C(x) The manufacturer can make up to This leads to a total cost of $ = 5 2 -x² + 60x + 960 2 approximates the dollar cost of producing a units of a product. The manufacturer believes cannot make a profit when the marginal cost goes beyond $250. What is the most units the manufacturer can produce and still make a profit? What is the total cost at this level of production? units and still make a profit.