2 Rodney owns 5 shirts for every 2 pairs of jeans he owns. Draw a model to represent the two quantities and then write a ratio to compare the quantities.
Explain your reasoning.

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?