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Mathematics, 23.10.2019 23:30 hello6975

On a backpacking trip through europe, troy spent 20 swiss francs to stay one night in a youth hostel. if the foreign exchange rate between the u. s. dollar and the swiss franc is 1: 2.2, how much did troy spend in u. s. dollars? a. $44 b. $9.09 c. $19 d. $20

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