Answer:
plus and minus
Step-by-step explanation:
example : 3 ± 5 = 8 or -2
Answer:
○ b. 
Step-by-step explanation:
Since <em>DF</em><em> </em>is a segment bisector, set both expressions equal to each other:
3n - 4 = n + 8
-3n - 3n
__________
−4 = −2n + 8
-8 - 8
_________
−12 = −2n
__ ___
−2 −2
[Plug this back into both expressions above to get the value of 14]; 
I am joyous to assist you anytime.
1. Given
2.Given
3.Alternate Interior Angles
4. Alternate Exterior ANgles
B.4% at least that's what I got lol I did it at least twice in my head
6 because 54 divided by 9 is 6