Problem 8. The following prices of zero-coupon bonds with redemption amount of $108 are given: Compute the price of a 4-year $100 par value with 5% annual coupons. Problem 9. Suppose the spot rates are i1S=4.25%,i2S=4.75%,i3S=5.00%,i4S=6.75%, and i5S=7.00%. Compute the 2-year forward rate, deferred for 3 years. Problem 10. A five-year investment project requires an initial investment of $10,000 at inception and maintenance expenses at the beginning of each year. The maintenance expense is $300 for the first year and is anticipated to increase 6% each year thereafter. Projected annual returns from the project are $3,000 at the end of the first year and decrease by $100 per year thereafter. (i) If the cost of capital is 7%, calculate the NPV of the project. (ii) Compute the internal rate of return for the project