Which two expressions are equivalent for any value of r?* a. 3(3r + 3) and 6r +6
b. 3(3r + 3) and 9r + 6
c. 9(r + 3) and 12 + 91
d. 9(r + 3) and 27 +91
Pick one of the remaining choices and explain on the lines below, why that
choice contains two expressions that are not equivalent for any value of r. help pls I'm just picking random stuff at this point​

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.