Assume that a hypothetical economy with an MPC of 0.9 is experiencing a severe recession. Instructions: In part a, round your answers to 1 decimal place. Enter your answers as a positive number. In part b, enter your answers as a whole number. a. By how much would government spending have to rise to shift the aggregate demand curve rightward by $40 billion? $ billion How large a tax cut would be needed to achieve the same increase in aggregate demand? Tax cut = $ billion b. Determine one possible combination of government spending increases and tax increases that would accomplish the same goal without changing the amount of outstanding debt. Increase government spending by $ billion Increase taxes by $ billion