Y = 3x + 3 y = x - 1 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution In (x, y) form. ​

Is the open sentence 5x-2=3x+2 true when x=2? justify your answer.

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?