Units of labour and units of output are given in the following table.

a. Complete the MPL marginal product of labour (MPL) and the value of the marginal product of labour (VMPL1) and complete the columns for each. Assume that the firm sells its products in a competitive market for $20 per unit. If the wage rate is $200, how many workers will this firm hire to maximize its profit? Explain your answer. (5 marks)

Units of Labour	Units of Output	MPL	VMPL1	VMPL2
1	10
2	19
3	27
4	34
5	39
6	42

b. Calculate the VMPL for a unit price of $25 per unit and complete the VMPL2 column with this data. If the wage rate is still $200, how many additional workers will this firm hire to maximize its profit? Explain your answer. (4 marks)

c. What will happen to the demand curve for labour if the price increases from $20 to $25 per unit? Explain your answer. (3 marks)

3. In the long-run equilibrium of a competitive market with identical firms, what is the relationship between price (P), marginal cost (MC), and average total cost (ATC)? (4 marks)