Which of the following is a polynomial?
A. (x^8 - 2) / (x^-2 + 3)
B. 1/x - 1
C. x^2 + 2
D. 7x^7 -2x^-4 + 3

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Write a similarity statement for the similar triangles. afgh ~ a