A food pantry is making packages that weigh is 64 pounds. Each package contains 4 boxes. Each box contains 7 pounds of beans and a bag of rice. The
bags of rice are all identical.
Which equation matches the story?

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?