conversations.from: human
conversations.value: Can you walk me through the solution of: Susan wants to throw a party for her mom. She is planning on having 30 guests. For dinner she is making a recipe that makes 2 servings each. Each batch of the recipe calls for 4 potatoes and 1 teaspoon of salt. A potato costs $.10 and a container of salt costs $2 at the supermarket. If each container of salt has 5 teaspoons, how much money will Susan spend on food?
conversations.from: assistant
conversations.value: Susan needs to make 30/2=15 batches of the recipe.
  Therefore, she will need 15*4=60 potatoes.
  She will also need 1*15=15 teaspoons of salt.
  Thus she will have to buy 15/5 =3 containers of salt.
  Therefore, she will spend 60*$.1=$6 on potatoes and 3*$2=$6 on salt.
  Thus, she will spend $6+$6=$12 on food.