You have $$300,000$ saved for retirement. Your account earns $9\%$ interest. How much will you be able to pull out each month, if you want to be able to take withdrawals for $25$ years?

You have $$3,000$ on a credit card that charges a $12\%$ interest rate. If you want to pay off the credit card in $5$ years, how much will you need to pay each month $($assuming you don't charge anything new to the card$)?$