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Mathematics, 18.02.2020 20:56 priscillarios30

The ZIP code is a 5-digit number that is unique to a specific region of the country. If the digits 0-9 are used, how many ZIP codes are possible with 0 as the last digit? Note that, in this case, the first digit can't be 0.

90,000

18,000

10,000

9,000

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