Hello, Linnus!
Did you draw a Venn diagram?
19 is correct!
There are 100 person at a school
9 people take English, language, and history
15 people take at least English and history
17 people take at least history and language
14 people take at least English and language
Together, 46 people take English, 43 people take history, and 40 people take language.
How many people take exactly 2 classes
I got 19...not sure if thats right