Answer
Александр
Red marks not to be used in calculations. Green marks that are used in calculations.
We know the fuel consumption and the distance traveled. Let's find the amount of fuel spent by each friend.
Adam: 442 * 0.05 = 22.1 liters .
Michael: 390 * 0.06 = 23.4 liters .
Jacob: 503 * 0.07 = 35.21 liters .
Noah: 335 * 0.05 = 16.75 liters .
Add up to know the total amount of fuel consumed.
22.1 liters + 23.4 liters + 35.21 liters + 16.75 liters = 97.46 liters.
Answer: 97.46 liters.