1. What is the difference between an argument and a parameter variable?

2. When a function accepts multiple arguments, does it matter what order the arguments are passed in? Explain your answer.

3. What does it mean to overload a function?

4. If you are writing a function that accepts an argument and you want to make sure the function cannot change the value of the argument, what should you do?

5. Give an example where an argument should be passed by reference.