Answer: I'm not to sure about this question its kind of confusing.
Step-by-step explanation:
-9
There are the same signs so you'd just add them together and use whatever sign they are..
Answer:
11
Step-by-step explanation:
I just assumed D is the midpoint; and if D is the midpoint,
GD=DH, GD+DH=GH
5.5+5.5=11
find the prime factors in each term to find the GCF
answer is 6x^2
