In a different plan for area codes, the first digit could be any number from 2 through 7, the second digit was either 5, 6, 7, or 8, and the third digit could be any number except 0 or 3. With this plan, how many different area codes are possible?

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step-by-step explanation:

sorry no step by step

what is the original number? you forgot to add it.

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the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72