Question 9 of 10 3 Points
Suppose a merchant in a moneyless economy traded his goods for a large
amount of purple fabric. He intended to use the fabric to trade for other
goods in another location. While he traveled to the other marketplace,
however, a trade ship arrived with a large shipment of purple fabric. As a
result, the merchant was only able to trade his fabric for about half of what he
had expected it to be worth in return. This situation illustrates the need for
what aspect of the purpose of money?
A. Preservation of value
B. Unit of measure
C. Ease of exchange
D. Government endorsement
I NEED HELP PLEASE!!

When marietta chooses to only purchase a combination of goods that lie within her budget line, she: is decreasing utility. is maximizing utility. likely has negative savings. must reduce the quantity?

Areal estate agent is considering changing her cell phone plan. there are three plans to choose from, all of which involve a monthly service charge of $20. plan a has a cost of $.42 a minute for daytime calls and $.17 a minute for evening calls. plan b has a charge of $.52 a minute for daytime calls and $.15 a minute for evening calls. plan c has a flat rate of $80 with 275 minutes of calls allowed per month and a charge of $.38 per minute beyond that, day or evening.a. determine the total charge under each plan for this case: 150 minutes of day calls and 70 minutes of evening calls in a month. (do not round intermediate calculations. round your answer to 2 decimal places. omit the "$" sign in your response.)c. if the agent will use the service for daytime calls, over what range of call minutes will each plan be optimal? (round each answer to the nearest whole number.include the indifference point itself in each answer.)d. suppose that the agent expects both daytime and evening calls. at what point (i.e., percentage of total call minutes used for daytime calls) would she be indifferent between plans a and b?

The martinez legal firm (mlf) recently acquired a smaller competitor, miller and associates, which specializes in issues not previously covered by mlf, such as land use and intellectual property cases. given the increase in the firm's size and complexity, it is likely that its internal transaction costs willa. decrease. b. increase. c. become external transaction costs. d. be eliminated.