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512 subsets
That means, figure out how many different subsets a set has. In general, if a set has n elements, it has 2n different subsets.
A set with 50 elements has 250 subsets.
Well, honey, a set with "n" elements has 2 to the power of "n" subsets. So, if you've got a set with 5 elements, you're looking at 2 to the power of 5, which is 32 subsets. Math doesn't have to be boring, darling!
If the set has n elements then it has 2n subsets.