I WILL GIVE BRAINLIEST! Which series of transformations will always carry an image onto the original figure?

A. reflection over the y-axis followed by reflection over the x-axis

B. rotation by 180' about the origin

C. reflection over the x-axis followed by reflection over the y-axis

D. rotation by 360° about the origin​

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

What is the solution to the equation 9^(x+1) =27

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.