college algebra

in a class of 30 students all of them are either female or smokers. while only 5 are female and smokers. if there are 12 male smokers in the class, then how many female nonsmokers are in the class?

1. 👍
2. 👎
3. 👁
1. no male non-smokers

17 smokers ... 5 female, 12 male

13 non-smokers, all female

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2. 👎
2. 13

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2. 👎

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