The answer is true.
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Answer:
B. the longrun profit would be negative.
Explanation:
A perfect competition is characterized by many buyers and sellers of homogenous goods and services. Market prices are set by the forces of demand and supply. There are no barriers to entry or exit of firms into the industry.
In the long run, firms earn zero economic profit. If in the short run firms are earning economic profit, in the long run firms would enter into the industry. This would drive economic profit to zero.
Also, if in the short run, firms are earning economic loss, in the long run, firms would exit the industry until economic profit falls to zero.
A firm would shut down in the short run if price is less than average variable cost and exit if it is making a loss
Answer: 28.57%
Explanation:
Average return given the variables will be;

Average rate of return = 
Average rate of return = 1,000,000/3,500,000
Average rate of return = 28.57%
I believe the correct answer is the first option. The labor supply curve is upward sloping because the opportunity cost of leisure decreases as wages decrease and the opposite of such is true as well. As one work one hour more, one will have less time for other activities. As the work rate increases in value, then the opportunity cost increases as well.
D. the shareholders decide who sits on the board of directors