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Can someone me with the property questions for 12 13 and 14 plz

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Choose the equation below that represents the line that passes through the point (2, 4) and has a slope of 3. a) y − 4 = 3(x − 2) b) y − 2 = 3(x − 4) c) y + 4 = 3(x + 2) d) y + 2 = 3(x + 4)