the relationship between the quantity demanded Qd of gasoline and price per gallon p of gasoline. Based on the graph, which of the following statements are true? Please select two correct answers. Downward sloping demand curve and upward sloping supply curve with price per gallon of gasoline on the vertical axis and quantity of gasoline on the horizontal axis. Downward sloping demand curve and upward sloping supply curve with price per gallon of gasoline on the vertical axis and quantity of gasoline on the horizontal axis. Select all that apply: Quantity demanded decreases as price increases. As price increases, quantity demanded also increases. The quantity demanded at p=$1.80 per gallon is higher than the quantity demanded at p=$1 per gallon. At a price of $1.20 per gallon, quantity demanded is 700 million gallons