Answer:
1) 110°
2) 130°
3) x=3
4) x=4
Explanation:
1) essentially, the full angle is 146° and the smaller one is 36°, leaving the bigger angle of the two being 146-36=110°
2) again, the full angle is 164° and the small one is 34°, so the missing/larger one is 164-34=130°
3) this is saying that 14x+2+23x+5=118.
solving this:
37x=111
x=3
4) same thing as 3. 178=31x+6+13x-4
44x=176
x=4