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Indicate which of the functions of money (a medium of exchange, a unit of account, and a store of value) each of the following performs in the U.S. economy. Check all that apply. Medium of Exchange Unit of Account Store of Value Plastic credit card Diamond Mexican peso 0 U.S. dollar bill 0 Given your answers to the previous task, indicate whether each of the following is considered money in the U.S. economy. Money Yes No Plastic credit card O O Diamond O O Mexican peso O O U.S. dollar bill O O