Question 452225: Without writing them all out, what is the number of subsets of set A ={king, queen, knight, prince, princess, duke, earl}?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Without writing them all out, what is the number of subsets of set A ={king, queen, knight, prince, princess, duke, earl}?
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Each of the 7 elements in "A" is either in or not
in a particular subset.
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So there are 2^7 = 128 subsets.
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Cheers,
Stan H.
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