Answer:
Battle of Palmito Ranch
Explanation:
The Battle of Palmito Ranch was the last battle of the civil war. It started on May 12, 1865 and ended May 13.
hope this helps!
Variable is a letter next to a number whether it’s x or y it can be any letter really but main ones is x and y and data is something written down from an oberservartion whether it’s an experiment or table etc.