The graph shows how many of each type of book was checked out from the library. How many fewer history books were checked out than adventure and fantasy books combined?

Books Checked Out
Adventure: 8
Fantasy: 10
History: 6
Sports: 4

In order to find the answer to this, we need to combine the number of Fantasy books with the number of Adventure books. Directions/answer below:

10 (Fantasy) + (combined) 8 (Adventure) = 18.
Now, you subtract that number by the number of History books. Continuing:

18 - 6 = 12.
Your answer is 12.

If I confused something and got it wrong, please let me know, but I'm pretty sure this is the answer! Thank you!

14 book is the answer

6 red = 10 white

9 red = 15 white

12 red= 20 white

so on and so forth.