Does the expression d - 12 have a greater value when d = 42 or when d = 46?

Aconvex octagon has interior angles that measures 73 degrees, 172 degrees, 132 degrees, 59 degrees, 154 degrees, 163 degrees, x degrees, 2x degrees find the value of the missing angles

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Find an equation of the line perpendicular to the graph.