Question

Billy makes $5 a week in allowance plus $4 for each lawn that he mows.

This week Billy wants to make over $15. Select the inequality for the
number of lawns he needs to mow.

Answer 1

$15 < $4n + $5

Explanation:

We know that Billy needs to make more than $15 between his allowance and the lawns that he mows. This means our inequality should include $15<. Also, since Billy will make $4 per lawn, that means we need to multiply $4 by the number of lawns he needs to mow, n: $4n. So far we have the following: $15<$4n. Next, we know that he makes $5 each week, on top of what he makes mowing each law. This means we need to add the $5 to the $4n. When we put all of these pieces together, we will get the following inequality: $15<$4n+$5