4. angle1 and angle2 are complementary.
So,
x+3x+30=90
4x=60
x=15°
5. angleZ is liner angle,
Z+43=180
z=180-43=137°
6. The sum of two angles,
53°+127°=180°
so,
These two angle are supplementary angles.
7. The sum of these 2 angles,
34°+56°=90°
so,
These two angle are complementary angles.
8. The two angle are equal =67°
So,
answer is neither.