Prom ticket costs $110
Money earned by walking his neigbor's dog: $10x, x is the numbers of weeks
He already has saved $33,
So the equation that represents what is the minimum numbers of week is:
[tex]\begin{gathered} 33+10x=110 \\ 10x=110-33 \\ 10x=77 \\ x=\frac{77}{10}=7.7 \end{gathered}[/tex]Rounding the number, John must walk his neigbor's dog during 8 weeks