After a particularly harsh winter, a country decides to help barley farmers by setting a price floor
on the price of barley. The supply of barley is given by the equation Qs 40+2P, while the
demand for barley is given by QD-100-4P. If the price floor is set at $15,
a) quantity supplied is 70 and quantity demanded is 40
b) quantity supplied is 40 and quantity demanded is 70
c) quantity supplied is 60 and quantity demanded is 60
d) the price floor will have no effect, since it is set above the equilibrium price
