Reasoning A store sells packages of comic books with a poster. A poster and 2 comics cost $8.99.A poster and 11 comics cost $17.99. Write a linear function rule that models the cost y of a package containing any number x of comic books. Suppose another store sells a similar package, modeled by a linear function rule with initial value $6.75. Use pencil and paper. Explain which store has the better deal.