Mathematics, 05.11.2020 21:10 lilyella1004

At the end of the quarter, sara knows she got a perfect score on 3 out of 7 of her history quizzes. How many total quizzes did she take during the quarter if she has 9 perfect scores?

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At the end of the quarter, sara knows she got a perfect score on 3 out of 7 of her history quizzes....