Consider the following information describing a closed economy with no government and where aggregate output is demand determined: the marginal propensity to consume = 0.7 the autonomous part of C is $40 investment is autonomous and is $110 a) What is the algebraic expression for the consumption function (out of national income)? b) What is the algebraic expression for the AE function? c) Draw the corresponding 45" - line diagram showing the determination of national income. Be sure to label it properly an identify the equilibrium