Mathematics, 10.11.2019 20:31, laza87
Sally lives in city a and works for the department of transportation. she needs to inspect the weigh stations in each of four different cities. in how many ways can she reach each of these cities and return to her home in city a?
Answers: 2
History, 07.10.2019 20:40, bananaslada
Answers: 3
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