Answer:
$13
Explanation:
First, you must find out how much Jason's family is spending on admission and keychains. To find this out, just multiply the $10 and the $2 separately by 4. Once you find out how much the family is spending on each item, add them up. It should look like this:
$10 x 4 = $40
$2 x 4 = $8
$40 + $8 = $48
Next, just subtract the $48 from the initial $100 to find out how much the family as a whole can spend on food.
$100 - $48 = $52
Finally, just divide the $52 by 4 to represent how much each family member can spend.
$52 / 4 = $13
Each person in Jason's family can spend $13 on food. Hope this helps!