A house painter decides how many cans of paint to buy based on the total surface area of the house. The table below shows the surface area image, in square meters, and image, the number of cans of paint used for three different houses.

40% off the regular price is the correct answer.

step-by-step explanation:

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14

1.44 centimeters is the correct answer