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Mathematics, 25.08.2021 23:10 charlesmb7985

Suppose that a household's monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, HCF). When graphed, the function gives a line with a slope of 1.35. See the figure below.
If the monthly cost for 15 HCF is $48.27, what is the monthly cost for 12 HCF?

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