There are different and additional terms in the purchase order. 2-207 can classify them as proposals. It is a boilerplate language- section 7 of the purchase order. It's boilerplate language in paragraph 7.
Modified agreement needs to have additional and modified language.
Time is of the essence - it is a material term. If a shipment is delayed, buyer can charge for lateness. Scenario 2 Issue of merchantability of goods. Conforming promise is only to the ordinary merchantability. Implied warranty of merchantability- just exists with a product inherently.