Which expression is equal to
5(2x2 – 1) 3(7x2 1)?
11x2 2
11x2 – 2
31x2 2
31x2 – 2

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.

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?