3) The government's Fuel Economy Guide says combined city and highway MPG estimates . . . assume you will drive 55% in the city and 45% on the highway. Annual fuel costs assume you travel 15,000 miles each year and fuel costs $3.66/ gallon for regular unleaded gasoline and $3.90/ gallon for premium. Convert these ratings to gallons per mile and gallons per hundred miles. What would the annual fuel cost be at current gas prices