SOLUTION: In 1963 the US Postal Service began using five-digit zip codes, how many zip codes are possible if the only zip code that cannot be used is 00000.
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-> SOLUTION: In 1963 the US Postal Service began using five-digit zip codes, how many zip codes are possible if the only zip code that cannot be used is 00000.
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Question 1155311: In 1963 the US Postal Service began using five-digit zip codes, how many zip codes are possible if the only zip code that cannot be used is 00000. Answer by Edwin McCravy(20054) (Show Source):
