Answer:
Addy hiked 0.65 miles more than Audrey.
Explanation:
In June we have the following distance traveled by Audrey (Au) and Addy (Ad):


And, in July we have:


Hence in June and July, they traveled:


Now, we can find how much farther did Addy hike than Audrey in both June and July:

Therefore, Addy hiked 0.65 miles more than Audrey.
I hope it helps you!