a. Use the appropriate formula to find the value of the annuity. b. Find the interest. Periodic Deposit $70 at the end of each month Rate 3% compounded monthly Time 25 years Click the icon to view some finance formulas a. The value of the annuity is $ (Do not round until the final answer. Then round to the nearest dollar as needed.) b. The interest is (Use the answer from part (a) to find this answer. Round to the nearest dollar as needed.)