Final answer:
To find the number of bags of soil Sabrina needs, set up the inequality x ⋅ 1.75 > 42. Simplify the inequality and divide to find that Sabrina needs more than 24 bags of soil.
Step-by-step explanation:
To find the number of bags of soil Sabrina needs, we can set up an inequality. Let x represent the number of bags of soil. Since each bag contains 1.75 cubic feet of soil, we can write the inequality: x ⋅ 1.75 > 42
Simplifying the inequality, we get: x > 42 / 1.75
Dividing 42 by 1.75, we find that x > 24
Therefore, Sabrina needs more than 24 bags of soil to top off her raised garden.