Central/Main Idea

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Barter system: trading goods instead of using money. Rice farmers traded rice for needed items, but often faced challenges if others didn't want rice. What title best expresses the main idea?

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Bartering: Trading Without Money

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Money's age is uncertain, but the Code of Ur-Nammu (circa 2050 BC) is among the oldest evidence of its use, showing laws and fines, including one for false accusations of sorcery.

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Code of Ur-Nammu: Proof of Very Old Money

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Main idea of the text about Continental currency during the U.S. rebellion.

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The Continental Dollar and Why It Failed

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Hyperinflation: Rapid money devaluation post-WWI in Germany. The Mark lost value, leading to extreme inflation. By Nov 1923, 1 USD = 4.21 trillion Marks. Money was burned for fuel.

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Hyperinflation in Germany After WWI

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Counterfeiting involves creating fake money that appears real. Detection methods include checking the texture, examining microprinting, and looking for security strips. What title best expresses the main idea?

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How to Detect Counterfeit Money

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Bitcoin is a digital currency allowing nonrefundable payments over networks. Its value surged from 30 cents in 2009 to about $7400 now. If it crashes, it can't be used as fuel.

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Bitcoin: Digital Currency with Skyrocketing Value

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Young Americans face easy credit temptations, often leading to debt from undisciplined spending and high interest rates. Avoiding this debt is crucial.

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Credit Trap: There's No Such Thing as a Free Towel

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Money influences our world, creating holidays like Sweetest Day to boost candy sales. The National Confectioners Association and Hallmark promote this holiday, leading to its perception as a commercial event.

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Sweetest Day: A Marketing Sham

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Rent a cotton candy machine from Bob's Party Supplies. Easy rental process: fill out a waiver, attend classes for 16 weeks, submit a research paper, and pay a $2,500 deposit. Be the envy at your party!

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Renting a Cotton Candy Machine From Bob's

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Henry Ford revolutionized car production with the assembly line, making cars affordable for many Americans.

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Henry Ford: Making Cars Cheaper Through Efficiency