geometry
posted by miguel .
In parallelogram TRIG, m∠R = 2x + 19 and m∠G = 4x  17.
What is m∠T

Opposite angles in a parallelogram are equal, assuming you are following the convention of listing vertices in order, then
4x17 = 2x+19
2x = 36
x = 18
so angle R = 55°
then angle T = 18055 = 125°