Which is equivalent to (9y2 – 4x)(9y2 + 4x), and what type of special product is it?

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

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?

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?