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Mrs. Cason gives her class a spelling quiz every Monday,and a history quiz every third Monday . Sally smarty is in Mrs. Carson's class. She received a grade of 100% on all three quizzes today. How long will it be before she again has to take all three quizzes in on day?

  • math - info required. -

    I see spelling quiz(every Monday) and history quiz(every third Monday).
    But I do not see a third quiz. Am I missing something?

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