Suppose the demand for these jets is given by the equation:
P = 3000 - Q,
where Q denotes the quantity of jets, and P denotes its price.
So that the marginal revenue facing the firm is:
MR = 3000 - 2Q.
The marginal cost of Lockheed Martin is given by the equation:
MC(Q) = 2Q
while the average variable cost is:
AVC(Q) = Q
Further it is known that Lockheed Martin has fixed costs of 500.
Suppose Lockheed sets one price for all its customers, what is the profit maximizing quantity in this case?
I found
Q*=750
P*=2250
WHAT IS FIRM'S PROFIT???????????

Question

Suppose the demand for these jets is given by the equation: 
 P = 3000 - Q, 
 where Q denotes the quantity of jets, and P denotes its price. 
 So that the marginal revenue facing the firm is: 
 MR = 3000 - 2Q. 
 The marginal cost of Lockheed Martin is given by the equation: 
 MC(Q) = 2Q 
 while the average variable cost is: 
 AVC(Q) = Q 
 Further it is known that Lockheed Martin has fixed costs of 500. 
 Suppose Lockheed sets one price for all its customers, what is the profit maximizing quantity in this case? 
I found 
Q*=750
P*=2250
WHAT IS FIRM'S PROFIT???????????