A 40 year old woman puts $1500 in a retirement account at the end of each quarter through 20 years then stops making further deposits. She keeps money in her account for the next 5 years. How much will she have in her account when she retires at the age of 65 if the bank pays interest at 6.4% compounded quarterly?

↑ A woman deposits $8000 at the end of each year for 13 years in an account paying 8% interest compounded annually. (a) Find the final amount she will have on deposit. (b) Her brother-in-law works in a bank that pays 7% compounded annually. If she deposits money in this bank instead of the other one, how much will she have in her account? (c) How much would she lose over 13 years by using her brother-in-law's bank? (a) She will have a total of $on deposit. (Simplify your answer. Round to the nearest cent as needed.) CUL

When she turned 30, Arwen started depositing $400 per month in a retirement account that earns 2.4% interest compounded monthly. If she plans to retire when the account contains $200,000, how old will she be when she retires.

To prepare for an early retirement, a self-employed businessman makes deposits of $6200 at the begin of each half-year for 6 years, starting on his 40 birthday. When he is 53, he wishes to make 30 equal day withdrawals. What is the size of each withdrawal if interest is 7.21% compounded daily?