hand, which s the better choice based on a life-cycle analysis.

A Southern Georgia school district is considering ordering 56 propane-fueled school buses. "They're healthier, they're cleaner burning, and they're much quieter than the diesel option," said a school administrator. Propane-powered buses also reduce greenhouse gasses by 23% compared to gasoline-powered buses and 4% compared to diesel ones. But they come at a premium-$93,000 for a propane model, $12,000 more than the diesel equivalent. The propane bus operating cost (above and beyond fuel cost) is 25 cents/mile, compared to 35 cents for the diesel. Diesel fuel costs about $4/gallon in Georgia, about $1 more than propane. Bus mileage is 15 mpg for the propane model vs. 14 mpg for diesel. The life of a school bus in the district averages 8 years, and each bus travels an average of 29,000 miles per year because the district is so large and rural. Which bus is the better choice based on a life-cycle analysis? The total cost of using one propane-fueled bus during its life cycle is $ . (Round your response to the nearest dollar.) The total cost of using one diesel-fueled bus during its life cycle is $1. Round your response to the nearest dollar.)