Briefly comment on the first test: 1) if you did well in the first test (A or B: over 80%), share your study skill with your classmates; 2) if you did not do well, briefly discuss your case and how to improve your score in the next test; 3) if you did not take the first test, briefly discuss your study plan for the next test; 4)comment on the test format or anything related to the test including the test schedule; 5) discuss which materials are most helpful to prepare for the test; 6) provide any suggestion on remote learning. Figure 2-6 Hybrid-engine automobiles Graph A Hybrid-engine automobiles Graph B Hybrid-engine automobiles Gasoline-engine automobiles Gasoline-engine automobiles Graph C Gasoline-engine automobiles General Motors recently approved for production the Cadillac Converj, an electric car based on its Chevy Volt. The Converj will feature a "Generation 1.5 Voltec" powertrain, with a hybrid engine that runs on a combination of electricity and gasoline. Assume GM chooses to produce both hybrid-engine vehicles and gasoline-engine vehicles for its Cadillac brand. Figure 2-6 shows changes to its production possibilities frontier in response to new developments and different strategic production decisions. Refer to Figure 2-6. Assume a technological advancement greatly reduces the cost to produce hybrid-engine vehicles. This is best represented by the Figure 3-2 Price Supply. S S 0 A B Quantity Refer to Figure 3-2. An increase in the price of substitutes in production would be represented by a movement from