ndpndntma ndpndntma 18-01-2018 Mathematics contestada a gallon of gas costs g dollars. paul puts 12.5 gallons of gasoline in his car and 0.75 gallon of gasoline in a portable tank. which shows how many dollars he spent on gasoline?a.13.25gb.12.8gc.12.5g+ 0.75d.12.5+0.75+g