B. Variable couve A do not change with the level of output Increase with the level of output decreme with the level of output fluctuate in a manner unrelated to the level of output 9. If MC> ATC, then: A ATC are increasing ATC are decreasing one ATC are constant cannot be determined from the information given 10. For a firm with typical cost curves: A. the ATC Increase then decreate the ATC decrease then increase ATC Is greater than MC MC is greater than ATC 11. A coal mining company h: A. a constant cost firm B. an increasing cost firm a decreasing cost firm cannot be determined from the Information given 12. A large number of buyers and sellers results In: A. freedom of entry and exit perfect information on a homogeneous product _a fixed and constant price 13. All of the following have freedom of entry and exit except: A gas station copy store C. cable television D. clothing store 14, The cost of an additional unit of input is: A. Marginal Revenue Product B. Total Factor Cost C. Total Revenue Product D. Marginal Factor Cost 15. A firm will continue to purchase more input until: A. MPP = MFC B. MRP = MFC C. MRP = P Y D. TRP = TFC