Find the measure of each angle in degrees and radians part 2

What is the solution of sqrt x+2-15=-3

Negative 5 1/12 + negative 4 1/4 + 6 3/4

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?