6. Problem 5.12 Click here to read the eBook: Finding the Interest Rate, I Click here to read the eBook: Comparing Interest Rates EFFECTIVE RATE OF INTEREST Find the interest rates earned on each of the following. Round each answer to two decimal places. 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 $87,000 and promise to pay back $707,925 at the end of 15 years. d. You borrow s14,000 and promise to make payments of $3,693.20 at the end of each year for 5 years