Find the interest rate (or rates of return) for each of the following situations. Round your answers to two decimal places.

1. You borrow $650 and promise to pay back $715 at the end of 1 year. %
2. You lend $650 and receive a promise to be paid $715 at the end of 1 year. %
3. You borrow $70,000 and promise to pay back $118,576 at the end of 12 years. %
4. You borrow $9,000 and promise to make payments of $2,000 at the end of each year for 6 years. %