Assume a co2 tax exists for motor vehicle fuels in the amount of $50 per metric ton of co2 emitted. determine the additional cost per gallon for gasoline as a result of the tax. treat gasoline as ch1.87 with a density of 750 kg/m3. submit your answer in cents (enter numerical value only without units). note: this calculation is similar to the calculation for a co2 emissions factor (per unit volume fuel), except with the additional $/mass co2 factor.