Which of the following equations is not written in general form? 2y = 7x - 19
2x + 5y - 9 = 0
5y - 9 = 0

Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint. how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)