Family consisting of 15 people are planning a road trip for N (unknown) number of days. They want to drive for 900 km per day with an estimated gas consumption of 9 per km. Regardless of the number of days travelled, the personal travel insurance (per passenger) is $55, and the vehicle insurance is going to cost 99 dollars. The cost of the rental car also is going to be $33 per day. Calculate: 1) The variable cost 2) The fixed cost 3) The total cost