If a chocolate cake is divided into six equal slices and each slice has 280 calories, how many calories are in the whole cake

What number should be added to both sides of the equation to complete this square? x^2-10x=7

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?

Find the solution of each of the following.