You take out a loan on 1/1/2021, and will repay the loan by making level annual payments over 30 years, with the first payment at the end of 2021, and the other payments at the ends of the subsequent 29 years. You are given that in the 8th annual payment, the interest paid is the same as the principal repaid. N Calculate the annual interest rate. (b) Calculate the ratio of the interest paid to the principal repaid in the 15th annual payment. (c) Calculate the ratio of the total interest paid to the total principal repaid at the end of the loan contract. You take out a loan on 1/1/2021, and will repay the loan by making level annual payments over 30 years, with the first payment at the end of 2021, and the other payments at the ends of the subsequent 29 years. You are given that in the 8th annual payment, the interest paid is the same as the principal repaid. N Calculate the annual interest rate. (b) Calculate the ratio of the interest paid to the principal repaid in the 15th annual payment. (c) Calculate the ratio of the total interest paid to the total principal repaid at the end of the loan contract