Help with all of the parts, please...

Construction on the Bonita Full-Service Car Wash is nearing completion. The owner is Dave Kerr a retired accounting professor. The car wash is strategically located on a busy street that separates an affluent suburban community from a middle-class community. It has two state-of-the-art stalls. Each stall can provide anything from a basic two-stage wash and rinse to a five-stage luxurious bath. It is all "touch less, " that is. there are no brushes to potentially damage the car. Outside each stall there is also a 400 horse-power vacuum. Dave likes to joke that these vacuums are so strong that they will pull the carpet right out of your car if you aren't careful. Dave has some important decisions to make before he can open the car wash. First, he knows that there is one drive-through car wash only a 10-minute drive away. It is attached to a gas station; it charges $5 for a basic wash, and $4 if you also buy at least 8 gallons of gas. It is a "brush"-type wash with rotating brush heads. There is also a self-serve "stand outside your car and spray until you are soaked" car wash a 15-minute drive away from Dave's location. He went over and tried this out. He went through $3 in quarters to get the equivalent of a basic wash. He knows that both of these locations always have long lines, which is one reason why he decided to build a new car wash. Dave is planning to offer three levels of wash service-Basic. Deluxe, and Premium. The Basic is all automated; it requires no direct intervention by employees. The Deluxe is all automated except that at the end an employee will wipe down the car and will put a window treatment on the windshield that reduces glare and allows rainwater to run off more quickly. The Premium level is a "pampered" service. This will include all the services of the Deluxe, plus a special wax after the machine wax, and an employee will vacuum the car, wipe down the entire interior, and wash the inside of the windows. To provide the Premium service, Dave will have to hire a couple of "car wash specialists" to do the additional pampering. Dave has pulled together the following estimates, based on data he received from the local Chamber of Commerce and information from a trade association. The total estimated number of washes of any type is 45,000. Dave has invested assets of $393, 750. He would like a return on investment (ROI) of 20%