(PLEASE HELP ASAP IM NOT VERY GOOD AT FRACTIONS AND PLEASE SHOW A PICTURE)

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save

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