The total income earned through the use of resources, plus taxes on production and on imports, equals:

The above table gives the demand schedule for Billy Bob's BBQ ribs. If the price of a pound of ribs falls from $3 per pound to $1 per pound, what is the change in Billy Bob's total revenue?

A) $42 B) $24 C) -$2 D) -$24

Refer to the figure above. With free trade, the total quantity of imports would equal

A) 10,000 units. B) 20,000 units. C) 22,000 units. D) 30,000 units.