Express the terms of the following sequence by giving an explicit formula. 8, 10 , 12 , 14 , 16 , . . a. u(n) = 2 + n, where n = 0, 1, 2, 3, . . b. u(n) = 2n, where n = 0, 1, 2, 3, . . c. u(n) = 8 + 2n, where n = 0, 1, 2, 3, . .

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