Prove: The square of a number that is two more than a multiple of 3 is one more
than a multiple of 3.
= 1 more than a multiple of 3

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