What is the slope of the line?

34 cup. a serving of vegetable soup is 23 cup. the restaurant sold 20 servings of chicken noodle soup and 18 servings of vegetable soup. how many more cups of chicken noodle soup did they sell than cups of vegetable soup?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?