Hello, I am having difficulty answering this homework question, hope you can help.

Thanks for everything!

The cost of operating a bus involves the cost of gasoline , the driver's wage and other maintenance cost. Assume that the cost of Gasoline is $ 1.25 per litre ,the driver earns $ 45 per hour, and maintenance cost is $ 0.18 per kilometre. If the fuel efficiency of the bus traveling at 80 Kilometres per hour is 9.6 litre per 100 kilometres, determine the cost of operating the bus (in Dollars) over a distance of 400 Kilometres