Answer:
31/100
Step-by-step explanation:
From the given table
Reading books percentage is 22
so Probability (reading books) = 
Surf the internet percentage is 9
Probability (surf the internet) =
the probability (reading books or surf the internet)= P(reading books) + P(surf the internet)
probability (reading or surf)= 
= 
Answer:
pretty sure its c
Step-by-step explanation:
Answer: First option.
Step-by-step explanation:
1. To solve this problem you can applly the quadratic formula, which is shown below:

2. The quadratic equation is:

3. Then:
a=1
b=-4
c=-38
4. Therefore, when you substitute these values into the quadratic formula, you obtain the following result:

x=2±√42