Question

Claire shops at her local book store and recently received a $75 gift certificate for her birthday. The store recently released a new promotion. Option 1: Pay $9 for every book Option 2: Pay a $12 annual fee plus $7 per book Write an equation for each option, then determine which option will be best for Claire.

Answer 1

The best option that would be for her is to do the annual fee plus the seven dollars a book.

The reason that the annual fee is better is because you get one more book than if you do a fee everybook that is higher.

represented by the equation, below is of the yearly payment and book and the second equation is for 9 dollars a book where x is the amount of books and 75 her total budget.

12(7x)=75-12 7x=63/7 x=9 books
9x=75/9 x=8 books