If z" = 2, what value of n makes this equation true?

Can anyone me with 32,33,36,37,and 40.

Which of the following expressions is equal to 2x^2+8

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?