Need all

l 10. What is the present value of interest payments for a $150 annuity for 15 years at a discount rate of 12%? 11. What is the present value of the principal payment {par value) at maturity if the single value of $1,000 that will be received after 15 years is discounted back at 10%? 12. Use the infci'mation to from the two previous problems to determine the present value, or principal payment