Let A and B be two events. Suppose the probabilities P(A) = 0.5, P( A and B) = 0.2
and P((AUB)') = 0.4. What is P(B)?​

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?