prompt: On Tuesday last week, Leo dropped off 10 pairs of trousers and some shirts at Sudsy Laundry. He was given a bill of $140, charged at $5 per shirt and $9 for each pair of trousers. When he went to pick up his clothes yesterday, the attendant insisted that he had only dropped off 2 shirts. Leo reported the matter to the manager, who ordered the attendant to search for the rest of Leo’s shirts. How many shirts were missing?
messages.content: On Tuesday last week, Leo dropped off 10 pairs of trousers and some shirts at Sudsy Laundry. He was given a bill of $140, charged at $5 per shirt and $9 for each pair of trousers. When he went to pick up his clothes yesterday, the attendant insisted that he had only dropped off 2 shirts. Leo reported the matter to the manager, who ordered the attendant to search for the rest of Leo’s shirts. How many shirts were missing?
messages.role: user
messages.content: The cost of laundering all of Leo’s trousers is 10 * 9 = <<10*9=90>>90 dollars
  Since the total bill was 140 dollars, this means that all the shirts were cleaned for 140 - 90 = <<140-90=50>>50 dollars.
  As each shirt is cleaned at 5 dollars, Sudsy Laundry therefore laundered a total of 50/5 = <<50/5=10>>10 shirts
  The missing shirts are therefore 10 - 2 = <<10-2=8>>8 shirts
  #### 8
messages.role: assistant