Answer:
The $84 should Lake report as a current liability for advances from customers in its Dec. 31, 2018, balance sheet.
Explanation:
Current Liability : The current liability is that liability which is for short term. The time period is less than 1 year. It includes bills payable, trade creditors, accrued expenses, etc. Â It is shown in the balance sheet under liabilities side.
For computing the advances from customers in its Dec. 31, 2018, balance sheet, the equation is shown below:
= Customer advances balance, Dec. 31, 2017 + Advances received with 2018 orders - Advances applicable to orders shipped in 2018 - Â Advances from orders canceled in 2018
= $118 + $186 - $174 - $46
= $84
Since the orders which are shipped and cancelled is not included  whereas the advances which are received is added while computing the advances from customers.
Hence, the $84 should Lake report as a current liability for advances from customers in its Dec. 31, 2018, balance sheet.