Cuba is one of the countries that is currently adopting a mixed type of economy. By definition, a mixed economy takes place when the concepts of a market economy and a command economy are combined in a single system. For Cuba, there are some elements that their government are implementing economic policies however not risking the integrity of the free market.
This machine was called the cotton gin
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Barter system- A method of exchange when no money is involved.
B and C can't be the answers because they are not exchanging anything.
D can't be the answer either because there is money involved.
So your answer is A) You trade an apple for a banana at school. because you are exchanging something with someone for something else thats not money.
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The purpose was to understand the formation of the Pluto system, the Kuiper belt, and the transformation of the early solar system!
Answer:
Explanation:
The rivers in Southwest Asia and north are important because without it people would have a harder time travaling to certain areas because there would be fewer landmarks. Also a lot of aqutic animals such as some fish and others.