Given:
Amount saved = $52
Amount you earn on each lawn = $4
Let's find how many more lawns you need to mow to reach a total of $74.
Let x represent number of lawns needed to reach a total of $74
We have the equation:
[tex]x=\frac{74-52}{4}[/tex]Let's solve for x:
[tex]\begin{gathered} x=\frac{74-52}{4} \\ \\ x=\frac{22}{4} \\ \\ x=5.5\approx6 \end{gathered}[/tex]Therefore, you need to mow 5.5 lawns which is approximately 6 lawns to reach a total of $74