Answer:
The correct answers are c. can contain special characters d. is case-sensitive
Explanation:
Variable can be referred to as a container used for storing values such as numeric values, memory addresses, characters, character string so it can be used in any part of the program. Every programming language has rules that you must strictly follow while naming a variable, and some of the rules for naming variable in PHP are A variable name can contain letters, numbers, and characters after the first character and A variable name is case sensitive.
Well if your talking about physically you could get some compressed air and blow it out. Or if your talking about performance you could try to re-install the os you have on it or replace the hdd with a ssd or higher performance hard disk for it to run like new. :)
Explanation:
you need a better pic if possible, it's kinda hard to read the question.
Alternatively referred to as external memory, secondary memory, and auxiliary storage, a secondary storagedevice is a non-volatile device that holds data until it is deleted or overwritten. Secondary storage is about two orders of magnitude cheaper than primary storage
Answer/Explanation:
Allowed or sanctioned by the Business Software Alliance. This is due to the fact that only one copy is to be transferred or transmitted.
