Answer:
We need to know how much George is being paid.
Step-by-step explanation:
Equity theory states that employees are motivated by fairness in the workplace, the definition of fairness here being getting a reward proportional to one's effort, abilities, and job performance.
George is described as a very competitive worker who has become more like the manager of the crew. This statement tells us that he is likely not formally a manager within the organization hierarchy, and could be getting less than $20 an hour, the compensation that the newly hired manager will receive.
According to Equity theory, George should at least be paid $20/hr, or even more, because he has been succesful in managing his coworkers even if he does not hold that title.