Q Ian and Ada are both training for a marathon. Ian's house is located 20 km north of Ada's house. At 9:00 am. one Saturday. Ian leaves his house and jogs south at 3 km/h. At the same time. Ada leaves her house and jogs east at If: krn/h. When are Ian and Ada closest together. given that they both run for 2.5 h? A bus service carries [0 000 people daily between Ajax and Union Station. and the company has space to serve up to 15 000 people per day. The cost to ride the bus is $20. Market research shows that if the fare increases by $0.50, 200 fewer people will ride the bus. What fare should be charged to get the maximum revenue, given that the bus company must have at least 3 I 30 000 in fares a day to cover operating costs