I believe that the ending answer you are looking for is 1320 miles with no gallons of gas because if you have 440 miles with 20 gallons of gas just do 440+440+440=1,320
For this case, the surface area of the cylinder is given by: A = 2 * pi * r * h + 2 * pi * r ^ 2 Where. r: cylinder radius h: cylinder height Substituting values we have: A = 2 * 3.14 * 5 * (2 * 5) + 2 * 3.14 * 5 ^ 2 A = 471 Answer: The total surface area of the cylinder is: A = 471