Hello , can you please help me with the steps needed to solve this ? thank you very much

Real GDP C I G (billions of (billions of (billions of (billions of 2000 dollars) 2000 dollars) 2000 dollars) 2000 dollars) The above table gives information for the nation of North Hampton. There are no imports to or exports from North Hampton. a) Find aggregate expenditures for each level of real GDP. b) What is the equilibrium level of real GDP? e) If the level of investment decreases by $50 billion and MPC = 0.5, what will the new equilibrium level of GDP