Please answer 3 and 4

1) The price of watermelon was around 70 taka per kg at the beginning of March and now it is around 50 take per kg. Using the Model of Demand and Supply discuss in detail why the price of watermelon: may have decreased recently. 2} Let's assume the equilibrium price of water melon is 50 take per kg. However, the government is thinking of setting a price ceiling at 30 take per kg. Use the Model of Demand and Supply to predict the effects of the price ceiling in the market of watermelons. Would you advise the government to implement the primeiilng? 3] Discuss in detail the concept of a free market economy. Do you think it's a good economic System? Why or why not? 4] Given, the price elasticity of demand of chocolates in Bangladesh is Ed = | - 1+5 |. What are all the information we can obtain from the given price elasticity of demand? 5) Before Pathao entered the market. the price elasticity of demand of Uber rides were 0.7. Discuss In detail how the price elasticity of demand of Uber rides might have changed after Pathao and other ride sharing services entered the market