Answer:

Step-by-step explanation:
Given


and we know


-------1
as it is given
A and B are independent therefore


Substitute value of
in 1

on solving 

11/12 is .92 and 13/14 is .93 multiply them together and get .85 roughly
Answer:
What is 20 percent of 500.? = 100.
Step-by-step explanation:
Answer: 45/8 or 5 5/8
Step-by-step explanation:
9 5 = 45
1 8 = 8
45/8=5 and 5/8