Ji-hoon has a credit card with a $500 limit. He wants to buy a fitness tracker. The total will come to $475. Should he charge the fitness tracker to this credit card?

Yes, Ji-hoon should charge the fitness tracker to his credit card. Since the total cost is $475 and his credit limit is $500, he will still have $25 of available credit remaining. As long as he is able to pay off the balance in full by the due date to avoid any interest charges, it is a safe and convenient way to make the purchase.