5x + 6y = 18 and 18x -15y =36 are these lines parallel, perpendicular, or neither

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

When the ball has traveled a distance of