Which of the following items plays a role in determining productivity?
a. physical capital
b. natural resources
c. technological knowledge
d. All of the above are correct.
d
Economics
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Economics
A housecleaning company receives $25 for each house cleaned. The table below gives the relation between the number of workers and the number of houses that can be cleaned per week. 
Based on the above info, the marginal revenue from the fourth worker is
A. $ 30. B. $6. C. $750 D. $150. E. none of the above
Economics