Could y’all help me with 6th grade math? :)

The amount of energy it takes to lift a box might be a function of which of the following

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?

What is 1.5% of 120 or what number is 1.5% of 120