Answer:
6
Step-by-step explanation:
12+x=3x
2x=12
x=6
There is no picture added. I can not help with that then.
Answer:
Step-by-step explanation:
Circumference C=2πr r=radius 
C=2(3.14)9.7
C=60.9
Answer:
12:15 (simplified: 4:5)
12/15 (simplified: 4/5)
12 to 15 (simplified: 4 to 5)
Hope this helped!
Answer:
49,850.64
Step-by-step explanation:
To find the area of a circle, you must use the formula pi r ^2 (pi r squared).
In this case, we are using 3.14 for pi, so we can add that into the formula.
3.1r^2
We also know the radius, so we can add that in too.
3.14 x 126 ^2
Now solve.
126^2 = 15,876
15,876 x 3.14 = 49,850.64
49,850.64 is the answer.
Hope this helped!
