2000 dollars is owed with 9% interest rate. Now, assuming that for 10 years, it is not being paid. Let's calculate for the money that is now owed. => 2000 dollars * . 09 = 180 dollars for 1 years => 180 dollars * 10 years = 1800 dollarsĀ => 2000 + 1800 = 3800 dollars for 10 years.