(T) (a) In a closed economy with the following functions: (1) (ii) (iii) C = 240 + 0.81/3 f280 @2400 t=0.2 Calculate the equilibrium level of income and the simple Keynesian multiplier in this model. Calculate the Budget Surplus (BS). Suppose the Government decides to give a stimulus package to its population amounting W = 200, Then what will be the new equilibrium level of income? r5...\