Elements belong to subsets: subsets contain elements (from the parent set).
If the universal set, U, has N elements then it has 2N subsets.
Elements can belong to subsets. Subsets can be elements of sets that are called "power sets".
An element doesn't have subsets. Sets can have subsets.
The number of elements. A set with n elements has 2n subsets; for example, a set with 5 elements has 25 = 32 subsets.
Relative subsets refer to subsets that are defined concerning a larger set or context. For example, if you have a universal set ( U ) and a subset ( A ) of ( U ), then relative subsets can be other subsets formed from ( A ) or the elements of ( A ) in relation to ( U ). This concept is often used in set theory and probability to analyze relationships between different groups within a larger framework.
512 subsets
A set with 9 elements has 2^9 = 512 subsets.
8 subsets
They are collections of some, or all, of the elements of the set. A set with n elements will have 2^n subsets.
A set with 50 elements has 250 subsets.
A set with n elements has 2n subsets. The number of proper subsets is one less, since 2n includes the set itself.
A finite set with N distinct elements has 2N subsets.