Answer:

Step-by-step explanation:
The line given has a slope of 7.5 and a point at (12, 80)
Because of the slope, simply subtract 2 from the x and subtract 15 from the y to get another point, at (10, 65)
Thus, simply put your points at (10, 65) and (12, 80)
Hope it helps and let me know if you want me to elaborate.
Squirrel = 4/15 = 16/60
16 miles per hour
Fox = 21/30 = 42/60
42 miles per hour
42-16 = 26 miles per hour
Solution: Fox; 26 miles per hour faster
The liter is dependent and how much u drink is independent