Iam a product. one of my factors is 9. the sum of two factors is 13. what am i?

If ac = 12 and ab=7 is it possible that bc =10

What is the greater volume 72 quarts or 23 gallons

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?