please solve these two problems without using excel and show all steps.

Question No.19 Suppose that, in a two-year interest rate swap, the floating rate for each year is determined as the one-year rate at the beginning of the year, but payments are made at the end of the year. According to the relevant yield curve for the swap, the one-year spot rate of interest is 6%, and the two-year spot rate of interest is 6.8%. Find the appropriate fixed rate for the two-year swap. A. 6.00% B. 6.77% C. 6.80% D. 7.24% E. 7.61% Question No.20 John borrows X for 12 years at an annual effective interest rate of 7%, to be repaid with payments at the end of each year. The amount of the first payment is 2,140. In each subsequent year, the payment amount is increased by g% over the payment amount during the previous year, where g is a positive integer between 6 and 10. The outstanding loan balance at the end of the 5th year is 19,635.72 Calculate the principal repaid in the second payment. A. $560 B. $582 C. $600 D. $630 E. $642