Final answer:
Money has three properties: medium of exchange, store of value, unit of account.
Step-by-step explanation:
Money has three properties according to economists: a) Medium of exchange, store of value, unit of account. A medium of exchange refers to money being used to buy goods and services. Store of value means that money can be saved and used in the future. Unit of account refers to money being used to measure the value of goods and services.