Final answer:
The answer to the question, 'Which is NOT an example of a Boolean expression?' is D: 18 + 4, because it is an arithmetic operation and does not evaluate to a true or false value.
Step-by-step explanation:
The student has asked which of the following is NOT an example of a Boolean expression. A Boolean expression is a statement that can either be true or false. The choices given are:
- A: 12 > 99
- B: 7 > 4
- C: 3 <= 2
- D: 18 + 4
Choices A, B, and C are all Boolean expressions because they compare two values and evaluate to either true or false. However, choice D is simply an arithmetic operation and does not result in a true or false value, but rather a numerical value. Therefore, the correct answer is:
D: 18 + 4 is NOT an example of a Boolean expression.