Answer :
[tex]\begin{gathered} \text{If she runs 7 miles in 50 minutes, then she runs} \\ \frac{7}{50}=0.14\text{ miles per minute} \end{gathered}[/tex][tex]\begin{gathered} \text{thus, in 75 minutes she runs} \\ 75\cdot0.14=10.5\text{ miles} \\ \\ \end{gathered}[/tex]
Ann runs 10.5 miles in 75 minutes