Answer:

Step-by-step explanation:
First, find the probability of him pulling out a book.
There are 11 objects in total, and there are 4 books.
So, the probability of pulling out a book is 
Next, find the probability of him pulling out a DVD after.
Since a book was taken out, there are only 10 objects left. There are 5 DVDs.
So, the probability of pulling out a DVD is
, or simplified to 
To find the probability that this happens in order, multiply the probabilities:
x 
= 
So, the probability is 
I think it might be 30 but I don’t know
Answer:
1863/275=6.7745recurring
Step-by-step explanation:
Dont u have a calculator
All you have to do is divide 500 by 3.
500 divided by 3 is 166.666667
I hope this helps:)