Answer:
Step-by-step explanation:

1.) 35,000+6,000+65+13
2.) 25,000+ 16,000+11,000+78
No 5/8 is bigger because half of 8 is 4 and 5 is greater than 4
The GCF of the three terms (9a, -18b and 21c) is 3
Rewrite each of the terms so 3 is a factor
9a = 3*3a
-18b = -3*6b
21c = 3*7c
So we can say...
9a - 18b + 21c = 3*3a - 3*6b + 3*7c
9a - 18b + 21c = 3(3a - 6b + 7c)
Answer: 3(3a - 6b + 7c)
If you distribute outer 3 to each of the inner terms and multiply, you'll get the original expression again.
C I think so sorry if I’m wrong