Which graph shows the solution to this system of inequalities?

When only separate discreet points are graphed it is called?

What is always true when two whole numbers are subtracted?

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups