Answer:
the car used 3.5 gallons of gas to travel 140 miles.
Explanation:
We can use the equation m = 40g to solve for g, given that m = 140:
m = 40g
140 = 40g
Divide both sides by 40:
g = 140/40
Simplify:
g = 3.5
Therefore, the car used 3.5 gallons of gas to travel 140 miles.