state whether each is true or false. If false, give a reason
{2, 5, 7} ⊆ {2, 5, 7, 10}.
Can you really have no idea whether {2,5,7} is a subset of {2,5,7,10}?
If not, just recall that A⊆B means that every member of A is a member of B.
{2, 5, 7} ⊆ {2, 5, 7, 10}.
If not, just recall that A⊆B means that every member of A is a member of B.