The following table gives the cost and revenue, in dollars, for different production levels, q. Answer the questions below.

q 0 100 200 300 400 500 600
R(q) 0 450 900 1350 1800 2250 2700
C(q) 670 865 990 1095 1255 1820 2590
1. The fixed costs are dollars
2. The price charged per unit is dollars
3. At approximately what level of production q, is the profit maximized? Round your answer to the nearest 100.
Answer: