Answer:
For 1), you should also add that methods in C++ are called member functions. Thus, the difference between functions and methods in this context is analogous to the difference between functions and member functions in C++. Furthermore, languages like Java only have methods. In this case, functions would be analogous to static methods and methods would have the same meaning. For 2), you should add that a method is able to operate on the private instance (member) data declared as part of the class. Any code can access public instance data.
A function is a mathematical construct. I would say all methods are functions but not all functions are methods
Explanation:
Answer:
The different variable in C is 21213316700.
Explanation:
Given value:
Total value = letters + underscore value
Total value = 52 + 1
Total value =53
choice for first character = 53 letters +10 digits
first character = 63
choice for remaining characters
So,
Variable number With one 1 character = 53
Variable number With 2 character = 53 × 63
Variable number With 3 character = 53 × 63²
Variable number With 4 character = 53 × 63³
.
.
.
Variable number With 7 character = 
Total difference variable = 53 + 53 × 63+ 53 × 63²+ 53 × 63³+....+ 
Total difference variable = 53(1 + 63 + 63²+ 63³+ .... +
)
Formula:

Total difference variable

Answer:
DVD and Floppy disk
Explanation:
DVD is CD. Its use for move, song and many things.NoW day people used pen drive.It is gone to Lost
Floppy disk is lost from world.It cannot save now day one photo. And don't like it
Answer:
apple and chrome brands come to mind
Https://zoo.cs.yale.edu/classes/cs112/2012-spring/as/as9/ visit this website it gives you the answers