# Algebra

How many possible 9-digit zip codes are possible if the first digit cannot be zero?

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2. 👎 0
3. 👁 496
1. 8*9^8

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2. 👎 1
2. 90,000

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2. 👎 0
3. 900,000,000 aka 9*10^8

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4. Yes, the answer is 900,000,000.

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