Final answer:
The statement 'If a customer is returning merchandise with a 'Split-tender' receipt, you always select the cash tender first' is False.
Step-by-step explanation:
The statement 'If a customer is returning merchandise with a 'Split-tender' receipt, you always select the cash tender first' is False. When a customer returns merchandise with a 'Split-tender' receipt, you should process the return by returning the amount paid through the original tender(s) used.
If the original tender(s) cannot be refunded in full, the remaining amount can be issued as store credit or refunded using a different tender, such as cash or card.