One your customers is delinquent on his accounts payable balance. You've mutually agreed to repayment schedule of $$500$ per monthYou will charge $1\mathrm{.}8$ percent per month interest on the overdue the current balance is $16,500,$ how long will it take for the account to be paid off? Note: Do not round Intermediate calculations and round your answer to $2$ decimal places, $32\mathrm{.}16$