The third one down is the correct answer. (-55 and 1)
M∠1 + m∠RPQ + m∠5 = 180° Definition of a Straight Angle
proof : mes1= PRQ (alternate interior)
RPQ = 3 Opposite angle (vertex)
5 =Q (alternate interior)
PRQ + RPQ + RQP = 180
Just add the two equations.
8x-3y=22
I hope this helps :)
