Answer:
The quantity of gasoline demanded will increase.
Explanation:
We are asked to find the change in demand of gasoline, when price of gasoline decreased from $2 per gallon to $1.40.
We know that quantity of a product demanded is inversely proportional to supply of the product.
This means that an increase in price will decrease the quantity demanded, while a decrease in price will increase the demand.
Since the price of gasoline is decreased by $0.60 per gallon, therefore, the quantity of gasoline demanded will increase.