6-8)The South Penn Trucking is financing a new truck with a loan of $40,000 to be repaid in 5 annual end-of-year installments of $10018 24

6-8)The South Penn Trucking is financing a new truck with a loan of $40,000 to be repaid in 5 annual end-of-year installments of $10018 24. What annual interest rate is the company paying? 6-9) You are contributing money to an investment account so that you can purchase a house at the end of seven years. You plan to contribute seven payments of $4200 a year—the first payment will be made one year from now, and the final payment will be made seven years from now. If you earn 13% in your investment account, how much money will you have at the end of Syears? 6-10) You have just taken out a 10-year $12.000 loan to purchase a new car. This loan is to be repaid in 120 equal end-of-month installments. If each of the monthly installments is S150, what is the effective annual interest rate on this car loan?