Tell me which one pls

2

Explanation:

Children tell the principal about the problem. she says a bake sale can help raise a money. The principal give an idea to the children.

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 .