If AAA and BBB are independent, P(A)=0.4P(A) = 0.4P(A)=0.4, and P(A∪B)=0.7P(A \cup B) = 0.7P(A∪B)=0.7, what is P(B)P(B)P(B)?
0.50.50.5
0.30.30.3
0.60.60.6
0.40.40.4