firms that set their own prices.

only one seller

at least a few sellers

many buyers and sellers.

complements.

inferior goods.

normal goods

none of these answers

increases the supply of that good

decreases the quantity demanded for that good along its demand curve

decreases the demand for that good.

increases the quantity supplied of that good along its supply curve

increases the quantity supplied of that good along its supply curve

increases the supply of that good.

decreases the demand for that good.

decreases the quantity demanded for that good along its demand curve.

a normal good.

an inferior good.

a substitute good.

a complementary good.