Muhammad buys a toy for $18 plus a 9% tax. Alexander buys a hat for $15 plus a 9% tax. Enter the difference in the amount Muhammad and Alexander paid, including tax. Round your answer to the nearest cent.

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