. What determines your marginal utility (MU) for anything you buy? Answer: 2. Can marginal utility (MU) subtract from total utility (TU) or does it always just add to it? Answer: 3. Why is it no matter how much you enjoy an activity, an experience or a good/service, its MU is always destined to diminish? Answer: 4. Can you explain how interpersonal utility comparison theory is behind the mass customization we enjoy today from everything from cellphones to mixing our own cereals and perfumes? (Just do your best trying.) Answer: 5. Explain how the Water-diamond Paradox applies to everything in the economy. (Explaining requires your give a Why/How). Answer: 6. Using the Water-diamond Paradox, explain why a Corolla is priced at about $22,000, but a Maserati is priced at about $100,000: Answer: 7. If the price of ice cream is $4.99 with a MU of 18, and the price of cookies is $3.99 with an MU of 13, then would this consumer be at equilibrium if they purchase 1 unit of each? B) What would this consumer do naturally