1. Problem 5.12 (Effective Rate of Interest) eBook Find the interest rates earned on each of the following. Round your answers to the nearest whole number. a. You borrow $740 and promise to pay back $777 at the end of 1 year. % b. You lend $740, and the borrower promises to pay you $777 at the end of 1 year. % C. You borrow $98,000 and promise to pay back $212,846 at the end of 9 years. % d. You borrow $10,000 and promise to make payments of $2,504.60 at the end of each year for 5 years. %