Find the interest rates earned on each of the following. Round your answers to the nearest whole number. a. You borrow $650 and promise to pay back $767 at the end of 1 year. 18 % b. You lend $650 and the borrower promises to pay you $767 at the end of 1 year. 18 % c. You borrow $85,000 and promise to pay back $585,293 at the end of 13 years. % d. You borrow $12,000 and promise to make payments of $2,771.70 at the end of each year for 5 years. %