3- A company has sales of $684,000, costs of $437,000, interest paid of $13,800, total assets of $721,000, and depreciation of $109,400. The tax rate is 20 percent and the equity multiplier is 1.8. What is the return on equity? (Show your calculations)

4- ABCD has sales of $218,400, cost of goods sold of $128,400, inventory of $46,300, and accounts receivable of $62,700. How many days, on average, does it take the firm to both sell its inventory and collect payment on the sale? (Show your calculations)