Suppose that a commuter drives 25 miles round trip to work for 20 days each month, achieves a fuel economy of 36 mpg, and drives an additional 300 miles each month. Develop a spreadsheet model for the monthly gasoline usage using the data provided. Apply the principles of spreadsheet engineering in developing your model. Complete the spreadsheet below. (Round to the nearest integer as needed.) B 1 Data miles/day days/month additional miles/month fuel economy (mpg)