Multiple Choice
If a representative firm with total cost given by TC = 20 + 20q + 5q2 operates in a competitive industry where the short-run market demand and supply curves are given by QD = 1,400 - 40P and QS = -400 + 20P,the number of firms operating in the short run will be:
A) 100.
B) 140.
C) 200.
D) 280.
E) 240.
Correct Answer:

Verified
Correct Answer:
Verified
Q15: If the perfectly competitive market demand for
Q16: If labor produces output according to Q
Q17: Toy Productions makes toy trucks from steel
Q18: A constant-cost industry is one in which:<br>A)
Q19: The long-run supply curve for a product
Q21: Producer surplus is defined as:<br>A) the difference
Q22: If a representative firm with long-run total
Q23: The following diagram represents the market for
Q24: If price is above the average variable
Q25: The following diagram represents the market for