This a question from an "Interest Theory" course:

9. (10 points) A 25-year bond with coupons payable semiannually at a nominal annual interest rate of r convertible semiannually has a face value of amount 10000. (a) Assume that r = 8%. The bond can be called at par on any coupon date in the 23rd and 24th years from the issue date and at the redemption amount C (where C