What is the present value of a stream of monthly payments of $25 made for 18 years, if the interest rate is 6% per year, compounded monthly? How much money must be deposited in a savings account each quarter in order to accumulate $10,000 at the end of 3 years, if the bank pays interest at the rate of 2% per year, compounded monthly? A savings bank offers $500 certificates of deposit. Each certificate can be redeemed for $1500 after 10 years. What is the nominal annual interest rate if the interest is compounded monthly?