If the letters A, B, C, D, E, and F are to be used in a five-letter code, how many different codes are possible if repetitions are not permitted? 720 7,776 1,296 625
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If the letters A, B, C, D, E, and F are to be used in a five-letter code, how many different codes are possible if repetitions are not permitted? A) 7,776 B) 720 C) 625 D) 1,296
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