please answer #2a-c

Please show all work.

2. You are a logistics manager for Huntsville Logistics, Inc. and you place an order with a supplier for 200 units of a product. The supplier shares with you her cost structure which is as follows: Material cost =$30 per unit, Labor cost =$40 per unit, Overhead cost =40% of the labor and material cost, profit is added as 20% of the above three costs. a. Determine the total cost per unit of this order. (20) ? 3. Describe various types of perception errors with examples