conversations.from: human
conversations.value: Jason bought a new bookcase that can hold a maximum of 80 pounds of weight. Jason has 70 hardcover books that each weigh half a pound, 30 textbooks that each weigh 2 pounds, and 3 knick-knacks that each weight 6 pounds. How many pounds over the bookcase's weight limit is this total collection of items?
  Solve it.
conversations.from: assistant
conversations.value: First find the total weight of the hardcover books: 70 books * .5 pound/book = 35 pounds
  Then find the total weight of the textbooks: 30 books * 2 pounds/book = 60 pounds
  Then find the total weight of the knick-knacks: 3 knick-knacks * 6 pounds/knick-knack = 18 pounds
  Then find the total weight of all the items: 35 pounds + 60 pounds + 18 pounds = 113 pounds
  Then subtract the bookcase's weight limit: 113 pounds - 80 pounds = 33 pounds