Find the interest rates earned on each of the following. Round your answers to the nearest whole number. a. You borrow $750 and promise to pay back $ 780 at the end of 1 year. % b. You lend $750 and the borrower promises to pay you $780 at the end of 1 year % c. You borrow $92,000 and promise to pay back $127,350 at the end of 11 years, % d. You borrow $14,000 and promise to make payments of $3,693.20 at the end of each year for 5 years. %