3. statements that create express warranties may include: 1) that the goods conform to any of fact or that the seller or lessor makes to the buyer or lessee about the goods; 2) that the goods conform to any of them; 3) that the goods conform to any or model of the goods to the buyer or lessee.

I believe that 3 is the correct answer since the other sentences seem to be missing some words:

3) that the goods conform to any ("or" shouldn't be there) model of the goods to the buyer or lessee.

Explanation:

1) that the goods conform to any of fact (WHAT IS ANY OF FACT? IS ANY A PROMISE, DECLARATION OR WARRANTY?) or that the seller or lessor makes to the buyer or lessee about the goods (AGAIN IT'S MISSING SOME WORDS);

2) the goods conform to any (WHAT IS ANY? PROMISE, WARRANTY, DISPLAYED UNIT OR MODEL) of them.

If the seller of a product states that the unit he is selling conforms to a sample or a model he is showing to you, then that constitutes a express warranty.

answer; by looking at total product,marginal product,and changes in both after changes in inputs

answer; ///global;