suppose that when the price of good x falls from $6 to $4, the quantity demanded of good y rises from 30 units to 40 units. using the midpoint method, the cross-price elasticity of demand is

You are given the following information about aggregate demand at the existing price level for an economy: (1) consumption = $400 billion, (2) investment = $40 billion, (3) government purchases = $90 billion, and (4) net export = $25 billion. if the full-employment level of gdp for this economy is $600 billion, then what combination of actions would be most consistent with closing the gdp gap here?