_{Please help with question #6, question #5 answer is 5th worker is 9. show work.}

The following table shows the total output per hour produced in a factory for various levels of employment of labor: Number of Total Workers Output 8 18 30 41 50 55 59 61 DO'vaLJ'I-L'n-LUNA The firm sells each unit of output at $2, and each worker is paid a wage of $12. What is the marginal product of the 5th worker? Use the table from Question 5. After how man};r workers, does diminishing returns start to occur