Mathematics, 16.04.2021 02:30 kleathers97

Your zip code is composed of 5 different digit 0 - 9. How many zip codes are there in the U. S? (Hint: Numbers can be repeated, first digit cannot be 0)
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How many zip codes would there be if a 0 COULD be the first digit?
zip codes
How many zip codes would there be if O cannot be the first digit AND you cannot repeat digits?
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Your zip code is composed of 5 different digit 0 - 9. How many zip codes are there in the U. S? (Hi...