Need help on the shortage and surplus question

PART III: Numerical Questions (40 points). You must show work for full credit. 1. Use the graph below to answer the following questions: P $15 $10 - 5 $5 Shortage D 8 12 16 a. What is the equilibrium price and equilibrium quantity? P= 108 Q = 12 b. At the price of $5, is there a shortage or a surplus? What is the amount of this shortage or surplus? Shortage of 5$ 2 c. At the price of $15, is there a shortage or a surplus? What is the amount of this shortage or surplus? surplus of 51 2