Select the correct answer.
in the context of trend analysis, what is base amount?
a.
sales of the first year
b.
difference in the sales amount of two successive years
c.
sales of the current year
od.
difference in the sales amount of the first year and the current year
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All of the industries and businesses in the country of marksenia are privately owned and sell products at different prices that are not controlled by the government or any other organizational body. consumers in marksenia are free to buy as much of the products as they like from the businesses they want. the country of marksenia has a

Acrosswalk_when there are no pavement markings.

*will mark brainliest! * when a company spends resources (labor, money) to give customers "free" items, those costs are called a. investment costs b. economic costs c. scarcity costs d. opportunity costs answer asap!