Alexi made monthly contributions of $450 to his retirement account that earns interest at a rate of 5%/year compounded monthly for 25 years. At the age of 50 he needed to stop contributions to help his parents financially. He made no additional contributions and no withdrawals for the next 15 years, but the money in the account continued to earn interest. How much money is in his account when he turns 65? Use units and context in your answer, round to two decimal places.

How much money is in an account where $80 was invested at an interest rate of 6% simple interest for 3 years?

You deposit $1000 into an investment account. 8 years later, the amount in the account has doubled. What is the percent growth (as a decimal) of the account?

A friend loaned some money. The debtor is scheduled to pay him $579 in 3 months. The friend needs money now, so you agree to pay him $521. What is the annual interest rate you will earn? Express Final answer in decimal rounded off with 4 decimal places

You get a bonus of 800.00. You invest it in an account that earns 2.5% interest compounded monthly. How much interest will you earn after 4 years.