The estimated cost of a completely installed and ready-to-operate 40-kilowatt generator is $32,000. its annual maintenance costs are estimated at $800. the energy that can be generated annually at full load is estimated to be 100,000 kilowatt-hours. if the value of the energy generated is $0.09 per kilowatt-hour, how long will it take before the machine becomes profitable? take the marr to be 10% and the salvage value of the machine to be $2,000 at the end of its estimated life of 15 years.

The former chairman of the federal reserve, alan greenspan, used the term "irrational exuberance" in 1996 to describe the high levels of optimism among stock market investors at the time. stock market indexes such as the s& p composite price index were at an all-time high. some commentators believed that the fed should intervene to slow the expansion of the economy. why would central banks want to clamp down when the economy is growing? a. to block the formation of unsustainable speculative asset bubbles. b. to curtail excessive profits in the banking system. c. to prevent inflationary forces from gathering momentum. d. all of the above. e. a and c only.