Find the value of x in the figure

Can someone me i’m confused. will give brainliest and a whole bunch of points

The variable in a relation who’s value depends on the value of the independent variable is called what?

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