Mathematics, 23.07.2020 21:01 hardwick744
Sonji bought a combination lock that opens with a four-digit number created using the digits 0 through 9. The same digit cannot be used more than once in the combination. If Sonji wants the last digit to be a 7 and the order of the digits matters, how many ways can the remaining digits be chosen?
Answers: 3
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Sonji bought a combination lock that opens with a four-digit number created using the digits 0 throu...
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