The table below illustrates the real GDP and the expenditures of Nation A. The figures given are in billions of dollars. Planned Government Real GDP Consumption Investment Purchases Net Exports 500 400 100 150 50 600 450 100 150 -50 700 500 100 150 -50 800 550 100 150 -50 Refer to the above table to answer the following. Make sure to provide a complete illustration and work to your answers. Determine the equilibrium level of real GDP? (5 marks) ii) Determine the marginal propensity to consume? (5 marks) ini What is the new equilibrium real GDP if the investment spending declines by $50 billion? (10 marks)