9514 1404 393
Answer:
see attached
Step-by-step explanation:
I like to use a spreadsheet for repetitive calculations. The distances are computed from the distance formula:
d = √((x2 -x1)^2 +(y2 -y1)^2)
The results are shown in the second attachment. The drawing in the first attachment has the lengths rounded to the nearest tenth.
Answer: A. 12.5
<u>Step-by-step explanation:</u>

N= x+15 where n = nina, x = the amount hiked together and the 15 is how much she already walked.