Answer: 904.32 cubic units.
Step-by-step explanation:
The formula for a sphere's volume is V = 
Substitute pi for 3.14 and radius for 6. 6^3 = 216

Multiply them together, the answer is 904.32 cubic units.
Do you mean an extraneous solution? I will tell you what I think. To tell if a solution is extraneous you need to go back to the original problem and check if there actually is a solution or if the solution is actually right. If not then it is extraneous.
I hope this helps you
244=4.61
2square roof 61
Because of rules of geometry we know that a+b=180 degrees so we can add the equations together and set that equal to 180 and solve
6x-48+4x+38=180
subtract 38 from both sides and add 48 to both sides
then add like terms
10x=170
and divide by 10 to get
x=17