 In this lesson, Anna visits a seafood market. The signs at the market tell the cost of the seafood. One sign says ears of corn cost $12 for one dozen. When we say the cost of one dozen, we say a dozen. The abbreviation or short form of the word dozen is DOZ. Listen to this conversation. How much is the corn? It's $12 a dozen. Now you try it. Crabs cost $20 for one dozen. How much are the crabs? They're $20 a dozen. In many markets, signs tell the cost of one pound of a food. For example, signs in the seafood market tell the cost of shrimp. The abbreviation for pound is LB. Signs may say LB or LBS for more than one pound. When we say the cost, we say a pound or for two pounds. Now you try it. How much for two pounds of shrimp? It's $31 for two pounds.