Answer:
72.5mph
Step-by-step explanation:
There is an easy way to work this. Divide the miles he drove by 2 so that you know how much he drove in 1/5 hours.
29/2= 14.5miles driven in 1/5 hours
Now, just multiply that number by 5 so that you know how many miles he drove in 5/5 hours (one full hour).
14.5*5= 72.5miles
1/4
if 3/4 cyclists finish then that leaves 1/4 of the group that did not finish
The distance bewtween -12 and 19 is 31
and -2 -7 is 5
and then 25 and -1 is 26