Mathematics, 21.07.2019 09:30 crimsonkiss
Acertain country's postal service currently uses 6-digit zip codes in most areas. how many zip codes are possible if there are no restrictions on the digits used? how many would be possible if the first number could not be 0?
Answers: 1
Acertain country's postal service currently uses 6-digit zip codes in most areas. how many zip codes...
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