Gallons of milk at a local grocery store are priced at one for $4.00, or two for $6.00.The marginal cost of buying a second gallon of milk:

Question

Quizplus · Accepted Answer

The marginal cost of buying a second gallon is the additional cost incurred when purchasing the second gallon. Since two gallons cost $6.00 and one gallon costs $4.00, the additional cost for the second gallon is $6.00 - $4.00 = $2.00.

Gallons of Milk at a Local Grocery Store Are Priced