A small publishing company is planning to publish a new book. The production cost will include one-time fixed cost (such as editing) and variable costs (such as printing). There are two production methods it could use. With one method, the one-time fixed costs will total $18,648, ad the variable costs will be $23.50. With the other method, the one time fix costs will total $83,556, and the variable costs will be $10 per book. For how many books produced will the costs from the two methods be?