Jurisdiction Z levies an excise tax on retail purchases of jewelry and watches. The tax equals 3 percent of the first $1,000 of the purchase price plus 1 percent of the purchase price in excess of $1,000. Required: a. Individual C purchases a watch for $490. Compute C's excise tax and average excise tax rate. b. Individual D purchases a watch for $4,860. Compute D 's excise tax and average excise tax rate. c. Is Jurisdiction Z's excise tax vertically equitable? Complete this question by entering your answers in the tabs below. Individual C purchoses a watch for $490. Compute C's excise tax and average excise tax rate. Note: Do not round your intermediate computations. Round your percentage answer to 1 decimal place and your other answer to the nearest whole dollar amount