Currently, the form of exchange that is most used in the United States today is the money or the dollar. <span>A </span>medium of exchange<span> is an intermediary used in </span>trade<span> to avoid the inconveniences of a pure </span>barter system. <span>When </span>money<span> is used to intermediate the </span>exchange<span> of goods and services, it is performing a function as a </span>medium of exchange<span>. Unit of Account: It is a standard numerical unit of measurement of market value of goods, services, and other transactions.</span>
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❤️Hello!❤️ Q − W Then the first law of thermodynamics (ΔU = Q − W) can be used to find the change in internal energy. Hope this helps! ↪️Autumn↩️
Answer:
Egypt was in the hands of foreigners or was engaged in internal problems and civil wars.
Explanation:
Period of Old Kingdom ended with the period of civil wars, that were started by corruption and internal problems in the country. This intermediate period ended with the establishment of new dynasty.
Period of Middle Kingdom ended with invasion of Hyksos who conquered Egypt and ruled for a 50 years.
