We know that
• Rudy delivered 220 newspapers in 55 minutes.
,• Elizabeth delivered 135 newspapers in 45 minutes.
Each relation represents a ratio of change. So, we just need to divide each of them to see which one is higher.
[tex]\begin{gathered} \frac{220}{55}=4 \\ \frac{135}{45}=3 \end{gathered}[/tex]This means Rudy can deliver 4 newspapers per minute, while Elizabeth can deliver 3 newspapers per minute.