The answer is C i know for a fact
Answer:
1205.75999
Step-by-step explanation:
Since 1/8 of his books are mystery and he has three of them, you would multiply 3 by 8 to find his total number of books which is 24.
Answer:
11.42 boxes
Step-by-step explanation:
For the first box bought, there is a 100% chance of getting a unique toy (since you still don't have any). E₁ = 1.
After that, there is a 4 in 5 chance of getting a unique toy from the next box, the expected number of boxes required is:

For the next unique toy, there is now a 3 in 5 chance of getting it:

Following that logic, there is a 2 in 5 chance of getting the 4th unique toy:

Finally, there is a 1 in 5 chance to get the last unique toy:

The expected number of boxes to obtain a full set is:

Sq rt of 8464= 92
sq rt of 29584= 172
sq rt of 15376= 124
sq rt of 10816 = 104
sq rt of 21904 = 148
sq rt of 44100= 210
We call these perfect squares.