Classify the following pairs of goods and services as substitutes in production, complements in production, or neither. a. Lumber and sawdust b. Condominiums and bungalows c. Cheeseburger and fries d. Cars and gasoline e. Cappuccino and latte 11. When a farmer uses raw milk to produce skim milk, he also produces cream which is used to make butter. I a. Explain how a rise in the price of cream influences the supply of skim milk. b. Explain how a rise in the price of cream influences the supply of butter..