Answer:
D
Step-by-step explanation:
I'm not certain but I guess that's it
Answer:
2
Step-by-step explanation:
8+2x=6x
-2x -2x
4x=8
=2
Answer:
630 people
Step-by-step explanation:
Ratios:

It isn't easy really but you can always divide the number out. For example 50% of 200 is 100 by dividing 200 by 2 or 25% of 100 is 25 by dividing 100 by 4 since 25% is equivalent to 1/4