Simplify the expression showing all the steps using correct mathematical notation. if you could write it down and take a picture that'd be amazing!

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?

Consider circle o, where and . m∠bpd °. °.

Which of the following circles have their centers in the third quadrant? check all that apply.