The table below sets out saving at each level of disposable income (billions dollars /year). Disposable income Saving 0 10 50 20 100 150 30 40 200 50 a. Calculate saving at each level of disposable income and the marginal propensity to save? b. Calculate the multiplier. c. Calculate the increase in real GDP when autonomous spending increases by $6 billion? C 100 20 The table below sets out saving at each level of disposable income (billions dollars /year). Disposable income Saving 0 10 50 20 100 150 30 40 200 50 a. Calculate saving at each level of disposable income and the marginal propensity to save? b. Calculate the multiplier. c. Calculate the increase in real GDP when autonomous spending increases by $6 billion? C 100 20