Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. Write the expression in the simplest form. (-11\2x + 3) - 2 (-11/4x - 5/2) = ___

Suppose that a households 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 slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?