Answer:

Step-by-step explanation:
For this problem, the fraction is out of 7 so all the values less than 7 is 1-6. So the probability is going to be 
Hope this helps.
Answer: It needs 2.4 hours to complete the trip.
Step-by-step explanation:
Since we have given that
Length of Oregon trail = 2.197 miles
Speed at which it travel = 20 miles per day
we need to find the time taken by it ,
As we know that


So,
it will be changed into hours

so, it needs 2.4 hours to complete the trip.