Let $S$ be the set of complex numbers of the form $a + bi,$ where $a$ and $b$ are integers. We say that $z \in S$ is a unit if there exists a $w \in S$ such that $zw = 1.$ Find the number of units in $S.$

Do a swot analysis for the business idea you chose in question 2 above. describe at least 2 strengths, 2 weaknesses, 2 opportunities, and 2 threats for that company idea.

Ellen and george work for the same company. ellen, a gen xer, really appreciates the flextime opportunities, while george, a baby boomer, takes advantage of the free computer training offered at the company. these policies are examples of

Brody and tanya recently sold some land they owned for $150,000. they received the land five years ago as a wedding gift from brody's aunt jeanette. she had already given them cash equal to the annual exclusion during that year. aunt jeanette purchased the land many years ago when the property was worth $20,000. at the time of the gift, the property was worth $100,000 and aunt jeanette paid $47,000 in gift tax. what is the long term capital gain on the sale of the property