conversations.from: human
conversations.value: Explain how to solve this math problem: Mikaela earns $10 an hour  tutoring. For the first month, she tutored for 35 hours and in the second month, she tutored 5 hours more than the first month. She spent 4/5 of her total earnings on her personal needs and saved the rest of the money. How much did she save?
conversations.from: assistant
conversations.value: Mikaela spent 35 + 5 = 40 hours in the second month.
  So, she tutored a total of 35 + 40 = 75 hours for the first two months.
  Thus, her total earning was 75 x $10 = $750.
  And, her total expenses was 4/5 x $750 = $600.
  Therefore, she saved an amount of $750 - $600 = $150.