Find the marginal of the following functions:

1. TC = 120,000-2000 + 0.00040²

2. TR = 1500 + 0.006Q²

3. TR = 900Q -0.2Q²

4. TC = 7,812,500 + 1000 + 0.006Q²

5. Profit- 10,000+ 4000 - 100²

6. Q=3200-50P² + 39A +0.25PA - 0.1A²

7. A) Find the output level at which revenue is maximized (P-Price)

P = 960 +.0005Q²

8. Find the revenue maximizing price.

9. Find the output level at which revenue is maximized if Price = $100-$0.0008Q

10. What is the revenue maximizing price?