(4-13) 13) alue of an Annuity Find the present value of the following ordinary anmuities (see the Notes to Problem 4-12) a. $400 per year for 10 years at 10% b. $200 per year for 5 years at 5% c. $400 per year for 5 years at 0% d. Now rework parts a, b, and c assuming that payments are made at the beginnin of each year, that is, they are annuities due. 3-8) Debt 1.5 Ratio Assume you are given the following relationships for the Clayton Corporation: Sales/total assets Return on assets (ROA) 3% Return on equity (ROE) Calculate Clayton's profit margin and debt ratio. 5%