Marginal Revenue Product, Marginal Product of Labor, MRP, MPL Explanation

For the Advanced Microeconomics Review please go to: http://bit.ly/2aj1txm "AP" is owned by the College Board which does not endorse this site or the above review. Study questions: 1) How does a firm determine how many workers to use? 2) How is MRP & MPL calculated? 3) If the wage of employees in perfect competition goes up, what would you expect to happen to the number of workers that the firm uses? 4) If demand for the product goes up (so price goes up), what would you expect to happen to the number of employees used? Explain 5) Based on the numbers below, state how many workers you think should be used. Assume that the product is produced in a perfectly competitive market where price = $2. Also, assume that labor is in a perfectly competitive market, with a going wage of $40 per day... # of workers 0 & output = 0 # of workers 1 & output = 30 # of workers 2 & output = 50 # of workers 3 & output = 65 # of workers 4 & output = 75 # of workers 5 & output = 79 6) Do the output numbers in question five show the law of diminishing marginal returns? Why or why not?