What is the domain of the function shown?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

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?

If the value of cos330°is√3/2 then find cos 165°.