I$\text{'}$m stuck, am I doing this right? Attached is a photo of where I$\text{'}$m at$...$

The annual percentage rate $($APR$)$ on your credit card is $24\%$ and your bank uses monthly compounding. During the first week of school, you racked up $$1,000$ in credit card debt. You do not have access to a cheaper source of financing, and you definitely do not want to tell your parents, so you decided that you will pay it all back in $$100$ equal monthly installments. Your first payment is due one month from today. How long will it take you to bring your credit card balance to zero?APR$=24\%=0\mathrm{.}24$ Compounded montuly, $m=12$