There are
enter your response here 1-member subsets of the set {a, b, c}.
(Type a whole number.)
The set {a, b, c} has 3 elements. The number of 1-member subsets (also known as singletons or subsets with exactly one element) is equal to the number of elements in the set because you can choose each element individually to create a subset consisting of just that element.
Thus, there are 3 1-member subsets of the set {a, b, c}. These subsets are {a}, {b}, and {c}.