The simple economy of Altria shown in the table below has no government or taxes and no international trade. Its investment is autonomous and its MPC is constant. a. Complete the table below. Remember to use a minus (-) sign to indicate negative values. Y C S AE 0 300 300 450 600 900 1,350 1,800 2.250 450 b. The value of expenditures equilibrium is $ C. The value of the multiplier is d. What are the consumption and savings functions