Mathematics, 27.02.2021 08:20 falldownguyss
Reginald wants to buy a new collar for each of his 2 dogs. The collars come in a choice of 7 different colors. Step 2 of 2 : How many selections of collars are possible if repetitions of colors are not allowed?
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Reginald wants to buy a new collar for each of his 2 dogs. The collars come in a choice of 7 differe...
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