She should have added 3 instead of subtracting because u need to do inverse operation when solving equations.
Find the difference in elevations:
8720 - 6350 = 2370 feet.
Difference in mile markers: 12-7 = 5
Average change = feet / markers
2370/5 = 474
The answer is 474 feet
Answer:
It could be because it shows trends and shows outliers and all the data in a way that makes sense
Step-by-step explanation:
