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Mathematics, 11.07.2019 11:50 zurfluhe

Ateacher gave a test with 50 questions, each worth the same number of points. donovan got 39 out of 50 questions right. marci's score was 90%.  how many more questions did marci answer correctly?  

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Ateacher gave a test with 50 questions, each worth the same number of points. donovan got 39 out of...

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