4,368 * 4 = 17,472
17,472 - 4,368 = 13,104
Tanner sent 13,104 more text messages than Jamie.
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Money is often defined in terms of the three functions or services that it provides. Money serves as a medium of exchange, as a store of value, and as a unit of account. Medium of exchange. Money's most important function is as a medium of exchange to facilitate transactions. -Google
