A full-time worker aged 30 invests $500 a month in a fund which has an average yearly return of 9 6% compounded monthly (a) The worker wants to estimate what they will have for retirement when they are 60 years old if the rate stays constant. Assume monthly compounding (b) if the worker makes no further deposits and makes no withdrawals after age 60, how much will they have for retirement at age 68? (a) How much money will the worker have in their fund when they are 60 years old? The worker will have Sin their fund when they are 60 years old (Round to the nearest cent as needed.) (b) If the worker makes no further deposits and makes no withdrawals after age 60, how much will they have for retirement at age 68? The worker will have $in their fund Round to the nearest cent as needed.)