You think that you have isolated ibuprofen in the lab. since you don't totally trust your own laboratory techniques, you want to prove to yourself that you have ibuprofen before you ingest it. using only melting point techniques, explain how you can prove that you actually have ibuprofen.

Based on the supply and demand theory, why do medical doctors earn higher wages than child-care workers?

The returns on the common stock of maynard cosmetic specialties are quite cyclical. in a boom economy, the stock is expected to return 22 percent in comparison to 9 percent in a normal economy and a negative 14 percent in a recessionary period. the probability of a recession is 35 percent while the probability of a boom is 10 percent. what is the standard deviation of the returns on this stock?

In the fall of 2008, aig, the largest insurance company in the world at the time, was at risk of defaulting due to the severity of the global financial crisis. as a result, the u.s. government stepped in to support aig with large capital injections and an ownership stake. how would this affect, if at all, the yield and risk premium on aig corporate debt?