The solutions to a linear equation are the points in the plane that make the inequality true . true or false ?

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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?

Evaluate cos2θ for cosθ = square root of 3/2