2. A bookstore company, who buys and sells books, has the following information available: Chapter 2, pg 44 Number of books sold 30,000 Selling price $10 per book Cost $4.00 per book Wages and salaries $2.00 per book plus $10,000 Supplies $1.00 per book plus $5,000 Selling and administrative expenses $1.50 per book plus $20,000 What is the gross margin? a. $10,000 b. $45,000 c $75,000 d $180,000