SOLUTION: How many subsets of 2 elements does the set {!, @, #, $, %} have?

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Question 454321: How many subsets of 2 elements does the set {!, @, #, $, %} have?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Each element is either in or not in any particular subset.
# of subsets = 2^5 = 32
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Cheers,
Stan H.