Hello, NeedHelp18!
List the subsets of: .
Answer: . . . . . Right!
Here's way to ensure that you have all the subsets . . .
First of all, a set of elements has subsests.
Your set has elements, so there are subsets.
Make a chart with 8 rows . . . and 3 columns (one for each element).
. .
In the first column, write four a's and four blanks.
. .
In the second column, write two b's and two blanks, etc.
. .
In the third column, write one c, one blank, etc.
. .
The eight possible subsets appear in the eight rows.