Question

the subsets of the set {w, x, y} are {w}, {x}, {y}, {w, x}, {w, y}, {x, y}, {w, x, y}, and { } (the empty subset). how many subsets of the set {w, x, y, z} contain w ?

Answer 1

4

Four subsets of {w, x, y} contain w.

Explanation:

There are four subsets that have w in it:

{w} has w in it.

{w, x} has w in it.

{w, y} has w in it.

{w, x, y} has w in it.

The answer is 4.