Answer :
To find the unit rate of Aria's walking we have to divided the distance by the time, then
[tex]\begin{gathered} \frac{\frac{1}{8}}{\frac{1}{10}}=\frac{1\cdot10}{8\cdot1} \\ =\frac{10}{8} \\ =\frac{5}{4} \\ =1.25 \end{gathered}[/tex]Therefore Aria walks at a rate of 1.25 miles per second