It means the ball did not move forward or backward. It stayed on the same line where it was
Final Answer: No Solution
Steps/Reasons/Explanation:
Question: 
<u>Step 1</u>: Divide both sides by
.

<u>Step 2</u>: Expand.

<u>Step 3</u>: Since
is false, we have no solution.
No Solution
~I hope I helped you :)~
I believe this is called scaling. This is the word that I am associating with your definition, as well as what many internet sources say. I am not 100% sure, but I think this is correct. Hope this helps.
Answer:
2500
Step-by-step explanation:
it is a geometric progression
r=5