The value of x in the following table is

The correct answer is (b) 18.

The table shows the number of hours worked per week and the corresponding salary for each employee. The employee who works 40 hours per week earns a salary of $1800. This is the only option that is consistent with the data in the table.

Option (a) is incorrect because it is the salary for an employee who works 45 hours per week. Option (c) is incorrect because it is the salary for an employee who works 35 hours per week. Option (d) is incorrect because it is the salary for an employee who works 25 hours per week.