Hi!
This question is pretty simple when you think about it.
"To and from" implies that she walked the [tex] \frac{3}{4} [/tex] mile two times that day, so all you have to do is add [tex] \frac{3}{4} [/tex] and [tex] \frac{3}{4} [/tex] together, making the answer 1[tex] \frac{2}{4} [/tex] miles, or 1[tex] \frac{1}{2} [/tex] miles simplified
