Help me pls i don’t wanna fail

Which equation requires the division property of equality to be solved?

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?

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5