Using inequality concepts, it is found that x = 5 is a solution for the inequality x < 18, given by option C.
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- In option A, the solution is composed by the values of x that are less than 2. x = 5 is more than two, so it is not part of the solution.
- In option B, the solution is composed by the values of x that are more than 9. x = 5 is less than nine, so it is not part of the solution.
- In option C, the solution is composed by the values of x that are less than 18. x = 5 is less than 18, so it is part of the solution, and this is the correct option.
- In option D, the solution is composed by the values of x that are more than 42. x = 5 is less than 42, so it is not part of the solution.
A similar problem is given at https://brainly.com/question/17578702
