2. See Graph below shows costs, price ($0 to $150), and quantity of good X (0 to 11) for a price taker firm A (operating in a perfectly competitive market).

$150 $140 MC $140 $130 $120 $110 $106 $100 $90 ATC $80 $90 $70 $60 AVC $50 560 $40 $30 $30 $20 $23.5 $10 $10 SO Quantity X 1 2 3 4 S 6 7 8 9 10 11