Find the interest rates earned on each of the following. Round each answer to two decimal places.

You borrow $660 and promise to pay back $726 at the end of 1 year

You lend $660 and the borrower promises to pay you $726 at the end of 1 year.

You borrow $57,000 and promise to pay back $415,393 at the end of 12 years.

You borrow $16,000 and promise to make payments of $5,001.00 at the end of each year for 5 years.