A civil engineering student is considering buying an electric car. However, the conscious student wants to make sure her carbon footprint will actually decrease with her new investment.

Her current car runs on internal combustion of gasoline (C_7H_16) and has quite good fuel efficiency at 36.5mi/gal. The electric vehicle she is looking to buy can perform at 5.2mi/kWh.

The student will recharge her car battery at school and the energy there comes from an 85% efficient power plant that runs on natural gas (CH_4).

Help the student make her decision by comparing the volume of CO_2 (in gal) produced in a month by both the gasoline and the electric cars.

Her commute is 16 miles per day and she drives to school 5 days per week.