Respuesta :

The correct answer would be B 94 degrees
kelly1812

Answer:

C x = 28°

Step-by-step explanation:

(x +30)° + (3x +10)° + x° = 180°

x +30 + 3x + 10 + x = 180

5x + 40 = 180

5x = 140

x = 28°