explain the problems inherent in a barter economy and describe why these problems were solved by the use of coinage as a medium of exchange

The problems inherent in a barer economy were the need for double coincidence of wants, lack of common measure of value, lack of divisibility, and the problems of transportation and storage of wealth. These problems were solved by the use of money because using money was much simpler, it served as a medium of exchange, there was a common measure of value, a standard of differed payments, and there was a store of value.

Explanation:

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1.   île de la cité

2. 200 years

3. for the nave and choir

hope im right, havent learned about this in a year