Which ordered pair would form a proportional relationship with the point graphed below?
Ty
40
(-20, 40)
30-
20-
10
-40-30-20-19
10 20 30 40 x
--20-
30
-40
O (-40, 20)
(-10, -20)
O (15, -30)
O (5, -15)

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?