Auniversal set contains only sets a and b. if a∩b = ø and a and b are not the empty set, then all of the following are true except

a and b are disjoint.
a is equal to b complement.
a∪b={}
a is not a subset of b.

Three coins are flipped. what is the probability that there will be at least two tails?

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

How do i get my dad to stop making me gargle his pickle i want my mom to gargle my pickle not my dads