For the set of triangle vertices, find the coordinates of the vertices of the image after a dilation by the given scale factor. Then graph the preimage and image on a separate sheet of paper.
A (9.9), B (3, 3), C(6.0), k = 1/3

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?