I'm having trouble figuring out the number of months that it

One of your customers is delinquent on his accounts payable balance.
You've mutually agreed to a repayment schedule of $630 per month.
You will charge 1.03 percent per month interest on the overdue
balance.
If the current balance is $14,850, how long will it take for the account
to be paid off? (Do not round intermediate calculations and round
your answer to 2 decimal places, e.g., 32.16.)
Number of months