There are 82 trees at a park. half of the trees are pecan trees and the
other half are oak trees. how many trees at the park are oak trees?
trees are oak trees.

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