Real property is closing on May 15. The buyer is assuming the seller’s mortgage. As of closing the balance is $65,325. The annual interest rate is 8%. How should the interest on the loan be prorated based on a banker’s year (360 days in a year, all months have 30 days)

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?