Lizzy: Whitney bought 9 books about whales and 7 books about fish. She also bought 3 magazines. Each book cost $11 and each magazine cost $1. How much did Whitney spend in all?.
Me: Hmmm, let me think. I think this is the detailed solution:
User
The total number of books is 9 books + 7 books = 16 books. The cost of the books is $11 / book × 16 books = $176. The cost of the magazines is $1 / magazine × 3 magazines = $3. Whitney spent $3 + $176 = $179 in all. Final answer: 179.
Assistant