10. Marcus spent $27.50 on 11 trading cards. If each trading card cost the same amount, how much did each card cost?

$2.50

Step-by-step explanation:

If each card costs the same amount, that means that the cost of one card multiplied by the number of cards purchased would equal the total amount spent. So, you can take the $27.50 and divide it by 11 to get the cost of each individual card, which is $2.50. If the cards cost different amounts, this wouldn't work.