Final answer:
The max cash back on a check payment varies by store policy, with no universal limit. Credits cards offers from banks, however, can offer cash back rates between 17-20%.
Step-by-step explanation:
The maximum cash back that can be given on a check payment often depends on the store's policy, as there isn't a standard limit that applies universally. However, when it comes to credit card offers and cash back rates, which might be related to banking and finance, it is not uncommon for consumers to receive offers that provide cash back rates in the range of 17-20%. These offers are typically from banks, particularly national ones. It is important to note that the question does not directly relate to credit card cash back rates, but since it mentions banks, the information is provided for additional context. Always be sure to check with the specific store or bank for their policies on cash back when making a payment by check.