Find the interest rates earned on each of the following. Round your answers to the nearest whole number. a. You borrow $660 and promise to pay back $759 at the end of 1 year. 0% b. You lend $660 and the borrower promises to pay you $759 at the end of 1 year. % c. You borrow $69,000 and promise to pay back $109,495 at the end of 6 years. d. You borrow $11,000 and promise to make payments of $3,359.50 at the end of each year for 5 years.