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Mathematics, 03.05.2021 15:40 dianamunoz580

In a different plan for area codes, the first digit could be any number from 3 through 6, The second digit was either 0,1,2, or 3, and the third digit could be any number except zero or five. With this plan how many different area codes are possible?

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In a different plan for area codes, the first digit could be any number from 3 through 6, The second...
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