Suppose Rachel owns a profit maximizing firm that produces a generic form of aspirin. Assume that the market for aspirin is perfectly competitive and all firms are identical. Her fixed costs are $7 per month. Her variable costs per month are given in the following table: (For Simplicity, assume Rachel can only produce in whole units each month)

Quantity Variable Cost Total Cost AVC ATC O 7 8 15 8.00 15.00 11 18 5.50 9.00 15 22 5.00 7.33 a UAWNH 21 28 5.25 7.00 29 36 5.80 7.20 39 46 6.50 7.67