Suppose that Florian's demand for good "Z" is QDElaria, = 24 - 3P and Sara's demand is Qp Sara = 32 - 4P. b) Draw each demand curve on the same graph. (Q on the horizontal axis and P on the vertical axis.) Do not forget to include the value of the intercepts on the vertical and horizontal axes for each curve. Label Florian's demand curve "Florian" and Sara's demand curve "Sara". c) Derive the market (combined) demand equation for good Z, assuming it is a private good. Make sure to show all your work. d) Derive the market (combined) demand equation for good Z, assuming it is a public good. Make sure to show all your work.