Answer:
1. 85°
2. 51°
3. 35°
4. 43°
Step-by-step explanation:
1. x=360-(95+100+80)
=360-275
=85
2. x=(360-54)/6
=306/6
=51
3. x+2x+3x+69+81=360
6x=360-150
6x=210
x=35
4. x+2x+90+81+60=360
3x=360-231
3x=129
x=43
