Answer:
Liz hiked 0.16 miles by herself.
Explanation:
Liz is hiking a trail that is 0.8 miles long. So the total length of her hiking is 0.8 miles.
Liz hiked the first 2 tenths of the distance by herself i.e she hiked
th of the total distance.
So, the distance that she covered by herself is,


miles
Therefore, Liz hiked 0.16 miles by herself.