it depends what aircraft it is and how much fuel it can hold
The total fuel on board of the aircraft is known as ramp fuel. Ramp fuel= taxi fuel+take-off-fuel
You would have to specify a particular aircraft, "fighter aircraft" is too broad a definition.
CO2 is not used in or as an aircraft fuel.
dry operating weight + take off fuel
Depends on the aircraft, capacity, and form... They range anywhere from $1,000 to $15,000 if new.
Not a good idea, as the fuel is considered contaminated. The fuel is usually recycled.
The maximum fuel capacity is 300 tonnes (about 410,000 litres), but it would rarely fly with full tanks since the fuel alone weighs about half of the maximum take-off weight of the aircraft.
The cost depends on the type of aircraft and the location of the launch. If it's your plane on your field, the cost is only fuel.
35,000 tons of fuel would get you to Paris from London and would cost £4500