 
 <translate> First, figure out how many gallons of gas Marcus bought by multiply the gas tank's volume by the number of fill - ups: 20 gallons * 2 = 40 gallons. Then multiply that number by Marcus's fuel mileage to find how many miles he drove: 40 gallons * 30 miles / gallon = 1200 miles. Then add that amount to the initial number of miles on Marcus' car to find the final number of miles: 1728 miles + 1200 miles = 2928 miles.
Therefore, the answer is 2928. <ibo> Nke mbụ, chọpụta lita gas ole Marcus zụtara site n'ịmụba ikike nke tank gas ahụ site n'ọnụ ọgụgụ ugboro ole ọ gbajuru ya: lita 20 * 2 = lita 40. Mgbe ahụ, mụbaa ọnụ ọgụgụ ahụ site n'ego mmanụ ụgbọala Marcus ji mee ihe iji chọpụta kilomita ole ọ gbara: galọn 40 * 30 maịl/galọn = kilomita 1,200. Tụkwasịzie nke ahụ n'ọnụ ọgụgụ nke kilomita ụgbọala Marcus gbara na mbụ iji nweta ọnụ ọgụgụ nke kilomita o ji gbaa: 1728 kilomita + 1200 kilomita = 2928 kilomita. Ya mere, azịza ya bụ 2928. 