Solve clearly

The Norwegian economy can be characterized by Equation: C =50 + 0.75(Y - T) I = 200 G=120 And the government's budget is balanced so G = T. Please answer the following questions: 1- Find the equilibrium level of income. 2- At equilibrium level, find the amount of saving in Norway? 3- If G rises to 160 with no change in taxes, what will happen to the equilibrium level of income? What is the government-expenditure multiplier? 4- If T increases to 160 with no change in G, what will happen to the equilibrium level of income? What is the tax multiplier? 5- If both government spending and taxes increase to 160, will equilibrium income change? Explain this result