help please, its super duper easy!

Answer:
36 degrees
Step-by-step explanation:
Okay, so the angles of a triangle are always gonna add up to 180. So, let's add up 68 & 76.
68 + 76 = 144
Now we just have to subtract that from 180
180 - 144 = 36
Answer:
R would be 36.
Step-by-step explanation:
Subtract the two know angles from 180 to get your missing angle. :)
Hope this helps!
If you don't mind please mark as brainliest! :)
Thanks!!!