Respuesta :

Answer:

c) 30

Step-by-step explanation:

since the lines are parallel, 75° = 2x + 15°

this is because when two parallels lines are intersected by the same line, all respective angles are equal. Also, opposite angles on a line are equal too.

So now that u have 75 = 2x + 15, just solve for x by simplifying:

75 = 2x + 15

60 = 2x

30 = x

so the answer is c) 30

hope this helps!