Assignment: #assessment2 Points: 5 Due: 04/22/2017
   a)  Explain:  What is a variable?



   b)  Explain:  How are variables defined?



   c)  Give an example of an invalid variable name and explain why it's invalid.


   d)  No or Yes:  The  ==  and  !=  relational operators have higher
                   precedence than the other relational operators.


   e)  The less-than or equal-to relational operator is _______.


   f)  The greater-than relational operator is _______.


   g)  Explain why 5 = 3 is an invalid expression (syntax error).


   h)  Record what the following code snippet prints.
   
       for (int i = 50; i ≥ 0; i--) {
           cout << i << endl;
           i /= 2;
           i -= 5;
       }


   /* the remaining problems use the following... */

   bool a = true, b = true, c = false, d = !false;


   i)  a && b  evaluates to _______

   j)  c || b evaluates to  _______

   k)  a || b && c evaluates to  _______

   l)  !a && b || !c evaluates to  _______

   m)  a == c || !c != a  evaluates to _______

   n)  !!a  evaluates to _______

   o) (a || b) && c || d  evaluates to ________