Janko Wellspring Inc. Has a pump with a book value of $27,000 and a 4-year remaining life. A new, more efficient pump, is available at a cost of $48,000. Janko can also receive $8,300 for trading in the old pump. The new pump will reduce variable costs by $11,200 per year over its four-year life. The costs not relevant to the decision of whether or not to replace the pump are:

Although appealing to more refined tastes, art as a collectible has not always performed so profitably. during 2003, an auction house sold a sculpture at auction for a price of $10,211,500. unfortunately for the previous owner, he had purchased it in 2000 at a price of $12,177,500. what was his annual rate of return on this sculpture? (a negative answer should be indicated by a minus sign. do not round intermediate calculations and enter your answer as