2. The Indonesian government does not carry out economic activities and does not intervene in economic activities, by carrying out economic activities only determined by the interaction between producers and consumers using the goods market and the market for production factors. Explain the money flow scheme, where there are 2 producers and consumers and 2 markets for goods/services and factors of production! 3.Consumer demand for an item when the price is Rp. 500 per unit is 60 units. Due to an increase in the cost of transporting goods, causing the price of goods to rise to Rp.600 per unit, consumer demand fell to 50 units. Calculate the elasticity of demand for the price of the good and explain the factors that determine the elasticity of demand! 4. Explain about the indifference curve and the budget constraint line! 5. The Engel curve is a curve that shows the relationship between income and quantity demanded. In normal goods, the Engel curve slopes upward because an increase in income will increase the ability of consumers to buy and consume more goods and services. Explain the Engel curve using pictures