Answer:
Close or disable all unused running apps.
Explanation:
Closing programs running in the background on your computer or mobile device helps to free up system resources for your other programs. These problems can be resolved where your system is running slowly or two programs are trying to use the same device hence causing the device or system to drag.
The first one and last one
Answer: The number of players and spectators present, as well as the maximum number of players and spectators allowed.
Explanation: players
I would think Microsoft Word would be the answer. It does everything a typewriter can.