9. Luisa Giovanni is a student at Hiram College. To help pay her way through college, Luisa started a dog walking service. She has 12 client dogs - 6 are walked on the first shift (6:30 AM and 5:00 PM) and 6 are walked on the second shift (7:30 AM and 6:00 PM). Assume this is a 30 day month. Last month Luisa noted the following: 1. Purchase of three leashes at $10 each (she carries these with her in case a leash breaks during a walk) 2. Internet service cost of $40 per month. This enables her to keep in touch with the owners (bill them by e-mail, etc) 3. Dog treats of $50 to reward each dog at the end of each walk (She buys a bag of dog treats each day) 4. A heavy-duty rain coat and hat for $100 5. Partway through the month, Luisa's friend, Jason, offered her a chance to play a bit part for a Superman movie that was shooting on location in Public Square, downtown Cleveland. The job paid $100 and would have required Luisa to be on location at 6 AM and to remain for 12 hours. Regretfully star-struck Luisa turned it down. 6. The owners pay Luisa $250 per month per dog for her services. Required: 1. At the end of the month, how would Luisa classify her Internet payment of $40 - as a cost on the balance sheet or an expense on the income statement? Why? 2. Which of the above is an opportunity cost? Why? 3. What is Luisa's total revenue for a month? Her costs