Final answer:
To determine which credit card Tommy will owe less on after two years, we need to calculate the total amount owed on each card using the provided interest rates. By plugging in the numbers and calculating the total amount owed for each card, we can determine which card Tommy will owe less on after two years.
Step-by-step explanation:
To determine which credit card Tommy will owe less on after two years, we need to calculate the total amount owed on each card.
For Visa, the nominal rate of 18% compounded monthly means the monthly interest rate is 18% divided by 12, or 1.5%. To calculate the total amount owed after two years, we would use the formula:
Total Amount Owed = Principal * (1 + Monthly Interest Rate)^Number of Months
For Mastercard, the annual rate of 19% means the monthly interest rate is 19% divided by 12, or 1.58%. To calculate the total amount owed after two years, we would use the same formula as above.
By plugging in the numbers and calculating the total amount owed for each card, we can determine which card Tommy will owe less on after two years.