Final answer:
The statement is True.
The statement that Mary's agreement to pay for the TV in 30 days on a '30 days same as cash' plan is an executory contract is true. This is because both parties, Mary and the electronics store, still have obligations to fulfill.
Step-by-step explanation:
An executory contract in the context of a goods market refers to a contract under which not all elements of the agreement have been fulfilled by the parties. In the scenario where Mary goes into Honest Harry's Electronics and purchases a TV, agreeing to pay for it in 30 days through a '30 days same as cash' plan, this indeed represents an executory contract. This is because the full payment is yet to be made, meaning both parties still have obligations that need to be met. Therefore, the statement that this is an executory contract is true.
The concept is akin to the strategy used in the goods market where sellers offer a money-back guarantee to encourage sales. Such a guarantee functions as a form of assurance like the promise Mary received, which is contingent upon future actions. This demonstrates how contractual agreements can influence consumer confidence and sales in the goods market.