Answer:
5x + 4 ≤ 15
Step-by-step explanation:
Since he has only $15, he cannot surpass this amount, BUT the items he purchase CAN equal the same amount so it'd look like this ≤ 15
$4 of jelly beans is a constant
$5 per pound is a variable : 5x
5x + 4 ≤ 15
