Deception may be used in a psychology experiment . a.) at any time b.) only when supervised by a professional psychologist c.) only when it is necessary for the subject, and does not inflict serious harm on him or her

answer is C

ok

no harm

you would times this by how many days there are in a year 365*400=$146000

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 .