confused about this question

NAME(S): & QUESTION 2. The QB Company builds McMansions (Q) in the Lower Mainland. It combines capital (K) and labour (L) in its production function in the following way: Q(K,L) = K131 13 Labour cost: w = $10 Capital rental cost: v = $160 2A. QB wants to build 9 McMansions. What is its cost-minimizing choice of Capital and Labour? (What is the objective function? What is the constraint?) 2B. Write out QB's cost equation. How much does it cost QB to build the 9 mansions? 2C. Illustrate this optimum McMansion production choice in an isoquant diagram. Label everything