please solve

Consider randomly selecting a student at a certain university, and let A denote the event that the selected individual has a Visa credit card and 8 be the analogous event for a MasterCard where P(A) = 0.45, P(8) = 0.40, and P(A ( B) = 0.30. Calculate and interpret each of the following probabilities (a Venn diagram might help). (Round your answers to four decimal places. ) (a) P(B | A) (b) P(B' | A) (C) P(A | B) (d) P(A' | B) (e) Given that the selected individual has at least one card, what is the probability that he or she has a Visa Card