Suppose that demand and supply for textbooks can be described by the following equations:
Qs=150+2P
Qd=510-P
Where P is price in dollars and Q is the quantity in units.
1. Determine algebraically the equilibrium price and quantity?
2. Suppose that the price to be fixed at $110. Determine algebraically the surplus or shortage that would result?
3. Discuss the differences in elasticity of supply and elasticity of demand?