Final answer:
The most accurate statement is that the actual costs are $90,500, calculated by subtracting the estimate to complete (ETC) from the estimate at completion (EAC).
Step-by-step explanation:
The question provided involves concepts typically discussed within business management, specifically concerning project management and cost control. Since the estimate at completion (EAC) is $179,000 and the estimate to complete (ETC) is $88,500, we can determine that the actual costs to date are the difference between these two values. Therefore, the actual costs to date would be the EAC minus the ETC, which is $179,000 - $88,500 = $90,500. Consequently, the second statement that the actual costs are $90,500 is the most accurate.