Could somebody help me to explain how to use the financial calculator to solve this problem, please?

You have estimated spot rates as follows: 6.60%, r4 6.80%, r5 5.90%, r2 6.30%, r3 6.90% ri a. What are the discount factors for each date (that is, the present value of $1 paid in year )? (Do not round intermediate calculations. Round your answers to 3 decimal places.) Discount Factors Year 1 2 3 4 5 LC b. Calculate the PV of the following $1,000 bonds assuming an annual coupon and maturity of: () 5.9%, two-year bond; (ii) 5.9%, five-year bond; and ii) 10.9%, five-year bond. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Present Value 5.90%, two-year bond 5.90%, five-year bond 10.90%, five-year bond b-i b-ii b-ii