You are given the following Functions:
Qd= 40-2P
Qs= 20 +3P
Find the following:
1- Find mathematically and graphically the Equilibrium price and Quantity?
2- If the price is 10 Riyal, what kind of surplus we will have and how much is it?
3- If the equilibrium price increased by one Riyal, what will be the quantity demanded?