If a firm faces the market demand curve shown above and charges a constant price of $1 per unit, then the total consumer surplus going to buyers is _____
80 120 160 240
If a firm faces the market demand curve shown above and charges $3 per unit on each of the first 40 units, and then charges $1 per unit for each unit over 40, compared to charging a $1 per unit price for every unit the firm captures an extra _____ in revenue by reducing buyers' consumer surplus.
$120 $160 $40 $80