Sarah wants to buy the car that has better mileage rating. Cars of company A travel 20 miles per gallon, and cars of company B travel 14 km per liter. [ 1mile= 1.6 km; 1 gallon =3.79]
Part A: which company's car should Sarah buy?
Part B: if 10 gallons of gas is filled in the car that gives better mileage and you went on a drive and checked on the gas used every 30 miles, describe appropriate scales on x- axis and y- axis to graph the rate at which the car uses gas.

Question

Sarah wants to buy the car that has better mileage rating. Cars of company A travel 20 miles per gallon, and cars of company B travel 14 km per liter. [ 1mile= 1.6 km; 1 gallon =3.79]
 Part A: which company's car should Sarah buy?
 Part B: if 10 gallons of gas is filled in the car that gives better mileage and you went on a drive and checked on the gas used every 30 miles, describe appropriate scales on x- axis and y- axis to graph the rate at which the car uses gas.