Which line shows the first error in the solution?
four less than a number divided by 3 is -11. what is the number?
line 1
line 2
line 3
line 3

Norma has an a-frame cabin. the back is shown below. how many square feet of paint will she need to cover the back of the cabin? explain how you found the answer.

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x