Penny pays $16 a month for her book club membership. With the membership, each book costs $3. Write an algebraic expression f
or her total bill for one month if she buys b books that month. An algebraic expression for the total bill for one month is nothing. (Do not include the $ symbol in your answer.) Enter your answer in the answer box and then click Check Answer.
Each book costs 3 dollars and b is the number of books borrowed that one month. In that month, she also needs to pay 16 dollars for her membership so if you put all of it together, you get 3b + 16.