Answer:
cucuchchcuchcucucchfhfuc uchczchcj h. fzchchch vzvzvhvhvuvzvz z <em>vvzvzc</em><em> </em><em>fudge</em>
Answer:21
2122
Step-by-step explanation:
9514 1404 393
Answer:
the correct choice is marked
Step-by-step explanation:
The elements are 1, 4, {4}, {9}. That is, any subset that includes 1 must include it without braces. Any subset that includes 9 must include it with braces.
{4, {9}, 1} is a subset of A
