Which side of triangle abc is the longest

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 formula for the area of a regular polygon is a=1/2ap . what is the equation solved for a?

Which of the following statements are true about the graph of f (x) = 1/4 coz ( x + π/3) - 1? select all that apply.