Find −3a2 − b3 + 3c2 − 2b3 if a = 2, b = −1, and c = 3.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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?

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points