Joan borrowed ​$17 comma 000.00 to buy a car. She repaid​$4100.00 four months later and ​$7900.00 six months later. Aftertwelve​ months, she borrowed an additional ​$6200.00​, and repaid​$5100.00 after 20 months. She paid the entire​ balance, includingthe​ interest, after 24 months. Interest was 9​% compounded monthlyfor the first year and 9.6​% compounded monthly for the remainingtime. What was the size of the final​ payment?
