Answer: $30000 or more
Explanation:
Calculation of profit made in the cabinet making business
Profit = Sales - Operation costs
=$100,000-$70,000
=$30000
From the calculation it can be seen that he earns a profit of $30,000 per year. As there is a job opening in furniture factory he can take up the job only if the lowest wage is at least $30,000 or more. This is for the monetary benefits that he receives through his salary. If the wages offered is less than his annual profits then he can continue with his business.