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Mathematics 7 Online
OpenStudy (anonymous):

Which of these sets consists entirely of composite numbers? A. 7, 9, 12, 22, 24 B. 12, 20, 34, 33, 15 C. 32, 44, 55, 66, 11 D. 9, 7, 5, 3, 1

OpenStudy (aroub):

B. 12, 20, 34, 33, 15

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