In an economy with no government and no foreign sectors, autonomous consumption is 250$ billion, investment is 350$ billion and the marginal propensity to consume, or mpc is 0.75 A) derive the equation for the aggregate expenditure curve and compute the equilibrium value B) what are the slope and the vertical axis intercept of the AE curve C) compute the multiplier D) if the investment rises to 450 billion what will the new equilibrium real gdp E) what is the effect of $30 increase in autonomous exports on equilibrium income