If d is the center of the circle below and arc ac measures 86°, what is the measure of angle abc?

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

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3