Mary cooper just purchased 220 shares in the all-american fidelity fund. the purchase cost for each share was $25. if this fund charges a 4 percent load, what is the total amount of commission she will pay the investment company?

Some years ago it was estimated that the demand for steel approximately satisfied the equation p=194-25x x, and the total cost of producing x units of steel was upper c left parenthesis x right parenthesis equals 145 plus 40 x. (the quantity x was measured in millions of tons and the price and total cost were measured in millions of dollars.) determine the level of production and the corresponding price that maximize the profits.