The inequality that represents how much she would save is
$112 < x
Here is how to come up with this answer.
1. Use math to determine the minimum amount she will save (at least).
0.2 x 140 x 4 = $112
2. x would represent all the possible amounts Em could save, so anything greater than or equal to $112 is possible.
You could also write this as x > $112.
