Question

Michael forgot the combination to his locker. His locker uses

four numbers, O through 9. How many possible combinations
exist for his locker?

Answer 1

Answer: 0-999

Step-by-step explanation: So we know that there is 10 numbers, and we know that we can do the same number more than once, so

10 to the fourth power equals 10,000

So the digits could be up to 0000 to 9999

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