Discover new perspectives and gain insights with IDNLearn.com's diverse answers. Our experts provide timely and accurate responses to help you navigate any topic or issue with confidence.

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 1.55. See the figure below. If the monthly cost for 17 HCF is $47.51, what is the monthly cost for 21 HCF?

Sagot :