What did the people do before there was money

List five words to describe your dominant culture. list five words to describe a culture with which you are not a member, have little or no contact, or have limited knowledge. can someone give me a example on how to answer this?

Precision dyes is analyzing two machines to determine which one it should purchase. the company requires a rate of return of 15 percent and uses straight-line depreciation to a zero book value over the life of its equipment. ignore bonus depreciation. machine a has a cost of $462,000, annual aftertax cash outflows of $46,200, and a four-year life. machine b costs $898,000, has annual aftertax cash outflows of $16,500, and has a seven-year life. whichever machine is purchased will be replaced at the end of its useful life. which machine should the company purchase and how much less is that machine's eac as compared to the other machine's

In the supply-and-demand schedule shown above, at the lowest price of $50, producers supply music players and consumers demand music players.