If an increase in the price of a product from $1 to $2 per unit leads to a decrease in the quantity demanded from 100 to 80 units, then, according to the midpoint formula, the value of price elasticity of demand (ignoring absolute value) is?

Email viruses are typically launched by people who modify header information to hide their identity. brightmail's enrique salem says that in the future, your email reader will authenticate the sender before putting hte message in your inbox. that way, you will know the source of all the emails you read. alan nugent of novell says, "i'm kind of a fan of eliminating anonymity if that is the price for security." will eliminating anonymity make computers more secure?

Connors academy reported inventory in the 2017 year-end balance sheet, using the fifo method, as $154,000. in 2018, the company decided to change its inventory method to lifo. if the company had used the lifo method in 2017, the company estimates that ending inventory would have been in the range $130,000-$135,000. what adjustment would connors make for this change in inventory method?

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.