can someone please answer these questions for me?

Answer:
5. 106°
6. 16.6°
Explanation:
5. 53 plus 53 equals 106
the exterior angle equals 106 degrees
6. 8x+5 = 40 + 5x + 15
8x+5= 55+5x
subtract 5 from both sides
8x=50+5x
subtract 5x from both sides to try to isolate x to one side
3x=50
divide 3 from both sides
x= 16.6
Answer:
106° , 155°
Explanation:
5.
53° + 53° = 106°
6.
40 + (5x + 15) = 8x - 5
5x - 8x = - 5 - 15 - 40
- 3x = - 60
- x = - 60/3
- x = - 20
x = 20
40 + (5 * 20 + 15) = 8 * 20 - 5
40 + 115 = 160 - 5
155 = 155°