1)If A and b are mutually exclusive events with P (A) = 0.3 and P(B) = 0.5, then P (AUB) equals 2)If P(B) = 0.85 and P AUB) = 0.72, and P (AB) = 0.66, then P(A) equals 3) If A and B are independents events with P(A) = 0.4 and P(B) =0.6, then P (AB) equals 4.)If A and b are two events such that P(A) = 1/4, P(B) =1/3, and then P (AB) = 1/12, what will be P(A/B)