1.If the demand for a good increases at the same time as the supply of the same good decreases, what will happen to the equilibrium price and quantity of the good?

2.If the supply of pencils, a substitute for pens, increases, what will happen to the equilibrium price of pencils and to the equilibrium price of pens?

3.Fill in the table below, showing whether equilibrium price and equilibrium quantity go up, go down, stay the same, or change ambiguously.