The table below represents the output and cost structure for a firm. The market is perfectly competitive, and the market price is $10. Total costs include all implicit opportunity costs. Average Average Total Total Marginal Marginal Total Variablel Output Cost Revenue Profit Cost Revenue Cost Cost 3 0 XXX XXX 7 10 2 9 20 W 10 30 12 40 16 50 6 22 60 7 30 70 8 40 80 9 52 90 10 68 100