Suppose you and your roommate have the following agreement when it comes to cleaning your apartment: each person washes her or his own dishes after each meal. the principle of trade you just learned tells you that it would be more efficient if: a) both of you wash your own dishes after each meal. b) neither of you wash the dishes after eating. c) each of you wash half of all the dirty dishes. d) one of you wash all the dishes while the other does a different chore.

D

Explanation:

The principle of trade you just learned tells that it would be more efficient if they both do their divided work. There are some tricks of the trade that you can use in cleaning your own house:

fertile good for trade etc

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .