5-4: Finding the Interest Rate, 1 5-16: Comparing Interest Rates Find the interest rates eamed on each of the following. Round each answer to two decimal places, a. You borrow $650 and promise to pay back $780 at the end 1 year. b. You lend $650 and the borrower promises to pay you $780 at the end of 1 year. c. You borrow $82,000 and promise to pay back $164,932 at the end of 5 years. d. You borrow $16,000 and promise to make payments of $5,001,00 at the end of each year for 5 years