Sum of 2x two thirds x + 5 and 11 - x. please help :)

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

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

I’m confused on how to work the pie charts