The number of seats at hard rock stadium is fixed at 70,000. Suppose the team raises the price of a ticket from $30, at which 70,000 are sold, to $40, and it sells 60,000 tickets. The price change would cause a change in consumer surplus of?

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.