4th and 5th question, please if anyone can answer??

Milo is planning to rent out Segway Personal Transporters on the Nanaimo waterfront for 90 days this summer. He purchased three Segways for $6,500 each. The segways are battery-powered electric vehicles that will be driven an average of 60 kilometers in a day. By purchasing two additional batteries for $995 each, Milo expects that he'll be able to keep his segways adequately charged to meet his daily demand. Milo's other expenses will include space rental and utilities for a total of $100 per day, as well as insurance of $15 per Segway per day. Questions: 1. If Milo charges $35 per half-hour tour (approximately 10kms ), how much profit does he expect to make this summer? 2. What is the lowest price he could charge per half-hour tour and still break even? 3. If he wants to realize a profit of $5,000 for the summer to put towards his tuition, how much more should he charge per half hour? 4. If the demand was there, would it be to Milo's benefit to scale this business up, purchase double the amount of Segways and bring on a part-time employee earning minimum wage to help him run the business? Assume the employee would work 4 hours a day, 5 days a week. 5. As a business consultant to Milo, what other recommendations would you make to Milo to improve the profitability or net income of this business