I'm pretty sure it's a. a distributed database.
I could be wrong though, someone fact check me.
1. Data
2. Input
3. Experimentation
4. Calculates Physics
5. You owe me.
6. Do your work next time.
7. You will never be able to enjoy a nice pipe and gin and use an app like this like a trivia game if you don't force yourself to completely understand your work.
8. I sound like your dad.
9. I am right.
I can't tell you the answer without a picture, but to find the answer yourself: Go straight up from the cell containing 'Activity Questions' this will tell you a letter such as B. Go directly across to the left of the cell containing 'Activity Questions' this will tell you a number such as 3. The name of the cell I used as an example would be called B3.
Answer:
A unique identifier for a wireless subscriber