Answer the Equation down below show step by step, please show your work pluralism isn't tolerated

What is the common denominator for 3/5+3/4

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

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.