conversations.from: human
conversations.value: Caprice is taking piano lessons. Her mother pays the teacher $10 for every half-hour of teaching her daughter. If Caprice is taking one lesson per week, and the lesson lasts 1 hour, how much money would the teacher earn in 5 weeks?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: If half-hour lesson is worth $10, then a one-hour lesson costs 2 * 10 = $20.
  One lesson per week would mean that in 5 weeks the teacher would earn 20 * 5 = $100.