Please help me answer question 1&2.

1. XYZ limited has project which is expected to yield the following cash flows: Years Cash flows 1-4 10,000 5-11 15,000 12-17 20,000 18-Infinity 30,000 The annuity between year 5-9 is received at the beginning of each period. The cost of capital is 12%. Calculate the present value of the differential annuities using the two approaches. (15 mks) 2. Upendo Itd wishes to take advantage of the new commercial paper now popular. It wishes to issue two debenture papers. Both bear coupons of 12% and the effective yield required on each is 20%. Paper A has a maturity of 10 years and paper B a maturity of 20 years. Both will be paying interest annually and Kshs. 100,000 at maturity. What is the price of each paper? If the effective yield on each paper rises to 24%, what is the price of each paper? (15 mks)