Question: In a different plan for areacodes, the first digit could be any number from0 through6, the second digit was either4,5,6,or7, and the third digit could

In a different plan for areacodes, the first digit could be any number from0 through6, the second digit was either4,5,6,or7, and the third digit could be any number except4or8. With thisplan, how many different area codes arepossible?

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