What are functions of money?

Explanation:

Medium of exchange: Without money, transactions would have been done by barter system, which involves direct exchange of  good or service for another. This helps to facilitate transactions.

Store of value: Money should hold its value over time. If money could not be stored for some period of time, the double coincidence of wants problem would have remained complicated.

Unit of account: Money is also considered as a unit of account, focusing on the value of goods and services being exchanged.

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