Answer the following questions: (a) An economy's production function is defined as Y = AKaL1-a. Find an equation that shows the contribution of A,K, and L to economic growth (Δy/y). (b) Find output per labour in terms of capital per labour if A = 1 and capital's share of output a = 0.25. (c) Find the steady-state capital per labour, output per labour and consumption per labour for part (b) if the saving rate is 20% and depreciation rate is 10%. (d) What is the steady-state consumption per labour?