Hi! Please help me answer my homework. Thank you :)

1. The following problems are designed to help you to apply the concepts that you learned about Demand and Supply. For each of the following statements, write True if the statement is true, and False if the statement is false, and a Uncertain if you are uncertain about the validity of the statement. (10 points) A. The Demand Schedule 1.1 The substitution effect tells us that people will buy more as prices fall because their purchasing power is increasing. 1.2 The demand for cars has increased in the past 50 years because the price has fallen. 1.3 When demand decreases, the price falls, so supply shifts to the left. B. The Supply Curve 1.4 Over the past few years, the price of compact disc players has fallen, and at the same time firms are supplying many more compact disc players. The law of supply is invalid in this case. 1.5 An improvement in technology will cause the supply curve to shift to the right. 1.6 If the price of Pepsi goes up, it is likely that the market supply curve for Coke will shift to the right. 1.7 If the wages of autoworkers increase, the supply of automobiles will shift to the left. C. Equilibrium of Supply and Demand 1.8 Markets for goods are defined by the behavior of suppliers who determine prices and output levels. 1.9 If the actual price in a market is above the equilibrium price, we would expect to see downward pressure on output and price. 1.10 In a market economy, goods are allocated by the price system to those people who can afford them