<u><em>[ Absolute ]</em></u><em> Addresses do not change if you copy them to a different cell.</em>
<u><em>[ Relative ]</em></u><em> </em><em>Addresses change depending on the cells you copy them to.</em>
Answer:
A(n) videoconference allows people at two or more locations to interact via two-way video and audio transmissions simultaneously as well as share documents, data, computer displays, and whiteboards.
ARPANET would not carry it
Answer:
To protect a formula
Explanation:
One common example to apply cell protection to spreadsheet entries is to protect a formula used in the sheet to calculate payouts or rankings for example. A manager might want to share the results of the team to all its team and provides some ranking or other form of calculations in the sheet. He then needs to protect the formula so it's not altered by the team members or anyone else reviewing the file.