conversations.from: human
conversations.value: Explain how to solve this math problem: A gift shop sells bracelets at $15 each, a gold heart necklace at $10,  and a personalized coffee mug at $20.  Raine buys three bracelets, two gold heart necklaces, and one coffee mug for her friends. How much change does Raine get back if she gives a one hundred dollar bill?
conversations.from: assistant
conversations.value: Three bracelets cost 3 x $15 = $45.
  Two gold necklaces cost 2 x $10 = $20.
  Thus, the total amount is $45 + $20 + $20 = $85.
  Therefore, Raine gets a change of $100 - $85 = $15.