66 is the anwer I think I'm not for sure I hope this helps and you get it right
Answer: 8(u - 10)
Step-by-step explanation:
B) 40 because if you add the two angles at the bottom which are shown to be congruent, then subtract 180 from the sum of those two, then you are left with your answer
Answer:
A positive number.
Any negative subtracted from a positive will always be positive.
Add 9 to both sides to get 4n=0 so n=0