I need help please.

Solve the flooring system by the elimination system

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

Solve this problem! extra ! 3025/5.5 = a/90.75

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