The Apple Pie Factory produces apple pies. The firm sells its product and hires its workers in competitive markets. The market price (p) for a pie is $4 and the wage rate (w) is $10 per hour. The table below shows the total hourly production (Q) for varying amounts of workers (L). (Remember that for a price-taking firm, p = MR.)

a. Fill in the p and w columns.
b. Calculate the MP and the MRP for each amount of labour employed. Put the numbers between the rows.
c. What is the logic of the firm's profit-maximizing condition for hiring labour?
d. How many workers should this profit-maximizing firm hire?