-Between merchants if within a reasonable time a writing in confirmation of the contract and sufficient against the sender is received and the party receiving it has reason to know its contents, it satisfies the requirements of subsection (1) against such party unless written notice of objection to its contents is given within 10 days after its received.
UCC 2-202 (Terms in an integrated Writing)
Terms in an integrated writing (dealing with Goods) may be supplemented/explained (but not contradicted) by, inter alia, course of dealing, course of performance, trade usage
UCC 2-204 (Contractual Analysis, MoMA in UCC)
-A contract for sale of goods may be made in any manner sufficient to show agreement, including conduct by both parties which recognizes the existence of such a contract (like Ray case with signature of contract)
-An agreement sufficient to constitute a contract for sale may be found even though the moment of its making is undetermined.
-Even though one or more terms are left open a contract for sale does not fail for indefiniteness if the parties have intended to make a contract and there is a reasonably certain basis for giving an appropriate remedy (solely for the sale of goods)
UCC 2-305 (Conclusion of a contract despite unsettled price)
-The parties if they so intend can conclude a contract for sale even though the price is not settled. In such a case the price is a reasonable price at the time for delivery if a) nothing is said as to price; or b) the price is left to be agreed by the parties and they fail to agree; or
c) the price is to be fixed in terms of some agreed market or other standard as set or recorded by a third person or agency and it is not so set or recorded.
§32 Invitation of a Promise or Performance
In case of doubt, an offer is interpreted as inviting the offeree to accept either by promising to perform (bilateral) what the offer requests or by rendering the performance (unilateral) as the offeree chooses. A party expects to be bound only if the other party either renders the return performance (in the ordinary commercial bargain.)
§86 Promise for Benefit Received
1) A promise made in recognition of a benefit previously received by the promisor from the promisee is binding to the extent necesary to prevent injustice.
2) A promise is not binding under subsection (1)
a) if the promisee conferred the benefit as a gift or for other reasons the promisor has not been unjustly enriched; or
b) to the extent that its value is disproportionate to the benefit