In the diagram above <1=135 find the measure of <2

Find the balance at the end of 4 years if 1000 is deposited at the rate of

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?

The anwser cause i do not understand just plez