7. In each of the following scenarios, a through d, determine whether the following is a microeconomic or macroeconomic issue and WHY. a. Dell computers announces that it will raise the price of its computers by 20%. b. When President Regan decided to cut the marginal tax rate by 23% back in 1981, the employment rate increase by 20% in the United States. c. Jim lost his job as a wrestler at WWE. d. When Japan restricted the number of cars going into the U.S., the sales of cars in the U.S. Auto Industries fell by 40%.