If the trend stays the same, which run time for the race should Caleb expect after 2 more weeks?
5.71min
4.37 min
11.02 min
7.03 min

My guess is 4.37.

I entered the numbers in my graphing calculator in a list, then generated the linear regression equation, and plugged in the number 21, which represents the 2 weeks mark.

If there are four friends then each would get, 1.25 or 1 1/4. so this is how i solved 5 ÷ 4 = 1.25 . hope this ; )