According to the equation of exchange, if real GDP is $2 trillion and the money supply is $0.5 trillion, the velocity of money:. A) must be 4
B) must be 1/4
C) must be 4 trillion
D) must be 1/4 trillion
E) cannot be determined unless we know the price level

You are evaluating two different silicon wafer milling machines. the techron i costs $285,000, has a three-year life, and has pretax operating costs of $78,000 per year. the techron ii costs $495,000, has a five-year life, and has pretax operating costs of $45,000 per year. for both milling machines, use straight-line depreciation to zero over the project’s life and assume a salvage value of $55,000. if your tax rate is 24 percent and your discount rate is 11 percent, compute the eac for both machines.