Find the interest rates eamed on each of the following. Round your answars to the nearest whole number a. You borrow $700 and promise to pay back $749 at the end of 1 year. Te b. You fend $700 and the borrower promises to pay you $749 at the end of 1 year. c. You borrow $50,000 and promise to pay back $69,212 at the end of 11 years. The d. You borrow $15,000 and peomise to make payments of $4,058.60 at the end of each year for 5 yeact