i need solution for this exercice please a $)$ How much do you have to have in the bank when you

retire if you want to withdraw $$5,000$ at the end of

please i need solution for this exercice$/$each period for the next $30$ years after retirement and

the interest rate is $5\%$ annually, compounded

monthly? $(3$ points$)$

b$)$ If you need $$931\mathrm{.}408,09$ when you retire, how much

do you need to invest each month if you are $35$ and

you plan to retire when you are $70.($annual interest

rate is $10\%,$ compounded monthly$)(3$ points$)$