For triangle XYZ, mz2X=(7g+12) and the exterior angle to X measures (2g + 60). Find the measure of ZX and its exterior angle.
AInterior angle = 49°; exterior angle = 131⁰
BInterior angle = 131°; exterior angle = 49°
CInterior angle = 96°; exterior angle = 84°
DInterior angle = 84°; exterior angle = 96°