Final answer:
The equation to calculate Amy's earnings as a CEO making $234 per hour is y = 234x, which corresponds to answer b) y = 234x.
Step-by-step explanation:
The equation representing how to calculate Amy's earnings as a CEO making $234 per hour is given by y = 234x, where x represents the number of hours worked and y represents the total earnings. Therefore, the correct answer is b) y = 234x.
This is a linear equation where the slope (m) indicates the earnings per hour, and since there is no initial fee (y-intercept), it is a direct multiplication of the hourly rate by the number of hours worked.