1.*1. 4 Alexei purchased 88 boards of sawn pine lumber at 59 hryvnia per board to frame an addition to his house. However, he used only 72 boards in the con struction process. He expects to be able to sell the remaining boards in the market for 50 hryvnia each.

What is the opportunity cost and what is the sunk cost of each of the unused boards?

2. Short-Run Costs