A graph has quantity on the x-axis and price (dollars) on the y-axis. A demand line goes through P 1 (15,40), P 2 (30, 30), P 3 (45, 20). The graph above shows one store’s projected demand curve for hand-held vacuum cleaners. If the demand at point P3 is fully satisfied, how much money will the store make by selling hand-held vacuum cleaners?
a.
$900
b.
$600
c.
$400
d.
$270