The sales tax for a certain state can be found by multiplying the purchase price by . what is the sales tax on an item that is $25.60? express your answer as a decimal.

Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5? −5, one third , one half 5, − one third , one half 5, one third , − one half 5, one third , one half

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?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).