conversations.from: human
conversations.value: I would love to understand how to solve this problem: Rebecca runs a hair salon. She charges $30 for haircuts, $40 for perms, and $60 for dye jobs, but she has to buy a box of hair dye for $10 to dye every head of hair. Today, she has four haircuts, one perm, and two dye jobs scheduled. If she makes $50 in tips, how much money will she have in dollars at the end of the day?
  Can you explain?
conversations.from: assistant
conversations.value: Rebecca will make 30 * 4 = $120 from haircuts today.
  She will make 60 * 2 = $120 from dye jobs.
  She will spend 10 * 2 = $20 on hair dye.
  With the $40 perm and tips, at the end of the day, Rebecca will have 120 + 120 + 40 - 20 + 50 = $310.