Answer:
8.37
Step-by-step explanation:
dont know but i know this is correct!
Answer:

Step-by-step explanation:
Number of drivers Screened = 671
Number Arrested for Driving While Intoxicating = 7
If the W denotes the event of screening a driver and getting someone who is intoxicated.
The Probability of W, 
- The Probability
is the probability of the event of screening a driver and getting someone who is not intoxicated. Simply put, it is the Probability of the Complement of W.
From Probability Theorem,

8 pages per 4 hrs
2 pages per hour
2 pages per 7 hours
14 pages
The first one is finding the square root of things I believe and I'm not sure about the second one sorry