Alpha Products, Inc., offers to sell to United Sales Company one hundred Internet appliances at $50 a piece, subject to certain specific delivery dates. United replies with a signed purchase order that reads, “Accept your offer for 100 I-appliances at $50 each. Must be delivered to our warehouse.” Alpha does not respond or deliver the goods. United files a suit for breach of contract, to which Alpha answers that there is no contract because United’s purchase order contained additional terms and is not signed by Alpha. Can United recover?