3. Consider a closed economy described by the following: Y=C+I+GC=160+0.8YdT=200+0.25Y Assume further that I=200 and G=200. a. Solve for Y and government saving (i.e., the budget surplus). b. Suppose that lump sum taxes are reduced from 200 to 100 . Solve for Y and government saving. What is the value of the fixed tax multiplier?.