HobbiesCo is a firm that produces model trains in a perfectly competitive market. The pro- duction of each model train requires millilitres of paint (P), and grams of wood (W). Their production function is given by f(P, W) = min 6VP, 3W - 12 (a) (3 points) Draw the isoquant corresponding to q = 48 trains in a clearly labelled diagram where P is the horizontal axis and W is the vertical axis. Label two distinct input bundles (P, W) in the diagram which give q = 48. (b) (2 points) Compute the marginal products of each input. (c) (1 point) Does this production function exhibit constant returns to scale? Using the marginal products you have computed in the previous part, explain your answer in no more than 25 words. (d) (2 points) Suppose that HobbiesCo wants to produce q trains when the price of paint is $72/ml and the price of wood is $18/g. Show that the minimum cost of such an undertaking is c(q) = 292 + 69 + 72. (e) (1 point) Suppose that the market price is p, and HobbiesCo will produce q units of trains. Using the cost function you found in the previous part, find the supply function of Hobbi- esCo. Express it as a function of price. (f) (2 points) Suppose that there are 60 identical firms like HobbiesCo who act as price-takers and the market demand for model trains is given by QD = 910 - 5p. Show that the short-run market equilibrium price in this industry is p* = 50