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Mathematics, 11.03.2021 16:50, yejinschoi6362
A cell phone number has 10 spots. The first number can be 2-8, the 2nd 0 or 1, the third 1-9, the 4th thru 6th any number but cannot repeat, the last 4 numbers can be any number How many phone numbers can there be?
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Answers: 2
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A cell phone number has 10 spots. The first number can be 2-8, the 2nd 0 or 1, the third 1-9, the 4t...
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