What is an equation of the line that passes through the point (6,-4) and is perpendicular to the line 2x – y = 5?

#12 find the value of x. #13 find the value of the variable.

What is the solution to the equation 9^(x+1) =27

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?