HELP!! When completing the square to solve the equation below, what number should be added to both sides?
x^2-8x=18
A) 4
B) 16
C) -8
D) -36

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?

If you could answer these your a life saver

Peyton's field hockey team wins 4 games out of every 7 games played. her team lost 9 games. how many games did peyton's team play?