all angles add to 180, so add and solve for x. plug x into A and you get 50 degrees
add 15.15 + 8.25 which is 23.38 then 30.00 - 23.38 and you get 6.62
I'm pretty sure the answer is 4 because, 4*21= 84.
Answer:
12
Step-by-step explanatik just need the points