Final answer:
Isaiah's annual percentage rate (APR) on the loan is 19.9%.
Step-by-step explanation:
To calculate Isaiah's annual percentage rate (APR), we need to find the equivalent annual rate for the given monthly interest rate of 1.65%. Here's the step-by-step calculation:
- Add 1 to the monthly interest rate: 1 + 0.0165 = 1.0165
- Raise the result to the 12th power because there are 12 months in a year: (1.0165)^12 = 1.199
- Subtract 1 from the result and multiply by 100 to convert it to a percentage: (1.199 - 1) * 100 = 19.9%
Therefore, Isaiah's annual percentage rate (APR) on the loan is 19.9%.