What happens when the quantity of a good supplied at a given price is greater than the quantity demanded?
excess supply
stable prices
exact equilibrium
increased production

Select the correct answer. what was edwin hubble's contribution to the field of astronomy? a. he discovered variable stars. b. he proved that the heliocentric model accurately described our solar system. c. he found a relationship between the period luminosity and distance of stars. d. he proved that the universe is finite. e. he discovered that the universe was expanding.