Answer:
for sure it's a negative since the slop is going down.. other than that, that's all I can help you with since I'm barely learning about that too :)
I assume that the values appearing after the equal signs for Riverwalk, Mountainview, and Pine are the distances in miles. For Dylan who hiked Riverwalk and Mountainview, the total distance covered is,
3/4 + 1/2 = 5/4 or 1.25 miles
For Sonia who hiked Mountainview and Pine, the distance covered is,
1/2 + 3/5 = 11/10 or 1.1 miles
I hope this is what you're looking for. Sorry for my writing, I did it with the mouse lol.
The answer i reallyyyyyyyyyyy d