Which of the following graphs represents a function choose all that apply

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

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

Use the given information to determine the exact trigonometric value.