The percent of a discount is 75% and the sale price is $55.50 what is the original price?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

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?

What function has a range {yly< 5}? question on picture above^