Answer:
2x+9=12x-21
-2. -2
9=10x -21
+21 +21
30=10x
Divide by 10 on both sides
30/10
x=3
Step-by-step explanation:
15.7 is already rounded to the nearest 10th.
Answer:
The answer is “B”
Step-by-step explanation:
Group and factor out the greatest common factor (GCF), then combine.
Answer:
Yes-
Step-by-step explanation:
It repeats .121212 infinitely... I assume. You didn't say if it repeated or not.