If DB = 3x+12 and CE = 2x+5, find AC.

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

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?

X-10/4 when x = –18 a 7 b –2 c –7 d 2