Answer:
Ray Flagg will pay $5,272 at the time of his 30th installment.
Step-by-step explanation:
Ray took $12,000 load for 60 months. As he paid no amount as down payment so his monthly payment will be $200:
[tex]=12000/60\\=200[/tex]
Instead of $200 per month, he used to pay $232 per month. So, before his 30th installment, he paid 29 installments each of $232 which is $6,728:
[tex]=232*29\\=6728[/tex]
As the business does better, he wishes to payback remaining amount at once so he will pay $5,272 as:
[tex]12000-6728\\=5272[/tex]