Help with questions 21 and 22

21. Suppose we observe the following rates: Maturity One year, Ri Yield | 6% 625% Ifthe pure expectations theory of the term structure ofinterest rates holds, what does the market expect will be the interest rate on three-year securities, two years from now? Two year R Three year, I R3 I 5.75% Four year, 6.25% Five year, 1R, 6590 22. Suppose you expect your investment to earn 6% in the first year but decrease to 4% in the second and third years. You want $10,000 after 3 years, what is the amount you need to invest today (present value)