Pls ansewr this an before you say anything about this being a test I tried everything but my mind isn't comprehending what to do i already did half of this question too so yea :(

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?