Final answer:
The APR for Big Dom's Pawn Shop, which charges a 15.5% monthly interest rate, is 186% per year, calculated by multiplying the monthly rate by 12.
Step-by-step explanation:
The student is asking how to calculate the Annual Percentage Rate (APR) for a pawn shop that charges a monthly interest rate. To find the APR from a monthly interest rate, we multiply the monthly rate by 12 (the number of months in a year). In this case, Big Dom's Pawn Shop charges a 15.5% monthly interest rate. Therefore, the APR would be 15.5% multiplied by 12, which equals to 186% per year. This is extremely high compared to typical credit card borrowing rates, which range from 12% to 18% per year.