10 THE FOLLOWING INFORMATION IS USED FOR QUESTIONS 1-10. Quiz Company sells its product for $10 per unit. Variable costs are $6 per unit and fixed costs are $15,000 per week. During the third week of July. Quiz Company sold 5,000 units. Suppose Quiz Company increased spending for advertising by $2,500 per week. As a result, sales in the fourth week increased by $5,000 compared to the third (current) week. Determine the operating income earned in the fourth week. Note: Give your answer using dollar signs and commas but no decimal points (cents) Example: $12,345