Answer:
He used a credit card to make the purchase and paid an additional $52.56 in interest.
Step-by-step explanation:
Xavier buys a computer for $525, which includes taxes.
He pays for the computer over a 12-month period by paying $48.13 per month.
In 12 months he pays = [tex]12\times48.13=577.56[/tex]
Interest he paid over $525 is = [tex]577.56-525=52.56[/tex]
So, if he used a credit card then he has to pay back with interest.
If he would have paid by debit card, he would not have paid the interest as all the money would have been paid once.
So, last option is correct. He used a credit card to make the purchase and paid an additional $52.56 in interest.