Based on the findings from part a$,$ where you calculated the required retirement savings

to generate monthly living expenses interest earnings, you are now $\_\_\_\_\_\_\_\_\_$

years old $($either you can use your actual age, or you can use $30$ years old as your age$)$

and aiming to retire at $65.$ How much must you save each month in an annuity account

with a compounded monthly and an $8\%$ interest rate to achieve your retirement goal?