3. If we know that Joe buys 3 novels each month, we know that the range of possible prices, from maximum to minimum must be:
  1. $18 to $14
  2. $20 to $18
  3. $21 to $19.25
  4. $22.50 to $21
  5. $45 to $63
Joe's Utility
NovelsUtility in $
0$0
1$25
2$45
3$63
4$77
5$88
6$96

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