hell
the sales was $700 and the commission was 8%
8% of $700 is
[tex]\begin{gathered} 8\text{ \% of \$700} \\ \frac{8}{100}=\frac{x}{700} \\ \end{gathered}[/tex]cross multiply both sides
[tex]\begin{gathered} \frac{8}{100}=\frac{x}{700} \\ 100\times x=8\times700 \\ 100x=5600 \\ \end{gathered}[/tex]divide both sides by the coefficient of x
[tex]\begin{gathered} \frac{100x}{100}=\frac{5600}{100} \\ x=56 \end{gathered}[/tex]the commission on the $700 is $56