3.1 Average Monthly Expenditures: CONCEPT CHECK the following problems. he average monthly expenditure of the following. January: $795, February: $776, March: $751 STEP 1: Find the sum of monthly expenditures. STEP 2: Take the sum of monthly expenditures and divide by the number of mormtns. Average Monthly Expenditures = $. 3, Use the Millor's

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