Two friends hiked the Appalachian Trail from Georgia to Maine. List at least two independent variables that would affect the number of days they took to hike the trail.

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.