Respuesta :

Answer:

C. 85 degrees

Step-by-step explanation:

(set the equations equal to each other):

6x-25 = 4x+15

(solve for x):

2x = 40

x = 20

(plug in x back into the equation):

6(20)-25 = 120-25 = 95

(subtract your value from 180 degrees (180 degrees is a line)):

180-95 = 85 degrees