Researchers have investigated the preferences over dinner and they have found that they take the following form:
U = – 75 Chicken + 70 Steak + 95 Fish – 54 Costs
Costs= cost in dollars of the dinner
Chicken= amount of chicken in pounds
Steak= amount of steak in pounds
Fish= amount of fish in pounds
Given this information, what is the marginal utility of fish?
