The estimated demand function (Moschini and Meilke, 1992) for Canadian processed pork is Q = 16120p + 20p_b + 3p_s + 2Y, where Q is the quantity in million kilograms (kg) of pork per year, p is the dollar price per kg (all prices cited are in Canadian dollars), pb is the price of beef per kg, p_c is the price of chicken in dollars per kg, and Y is average income in thousands of dollars. What is the demand function if we hold p_b, p_c, and Y at their typical values during the period studied:

p_b = 3.2,

p_c = 3 ³/₁₀, and Y = 13?