Answer:
Tokens are needed to operate the washing machines.
Step-by-step explanation:
Based on the passage provided in the question, it can clearly be stated that tokens are needed to operate the washing machines. The laundry mat even put up notice that says that machines only accept tokens and nothing else.
The instructions were clearly written. Water levels and other settings can be selected before the token is inserted. The washer should not be opened when the blue light is illuminated. And detergents should be added only when the water begins to flow into the machine, not before.