conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: When Billy was first hired, he was paid at a rate of $10 per hour.  After 2 months, he was given a raise of $0.50 per hour.  On his first anniversary at work, he was given a raise of $1.00 per hour.  Sally just started working at a different business, and her starting salary is $0.50 more per hour than Billy's starting salary was.  If both Billy and Sally work 20 hours, how much more money will Billy earn than Sally, in dollars?
conversations.from: assistant
conversations.value: Billy has a salary of $10+0.50+$1.00=$11.50 per hour.
  Sally is paid $0.50 more per hour than Billy's initial salary, for a total of $10+$0.50=$10.50 per hour.
  If Billy works 20 hours, he will be paid 20*$11.50=$230
  If Sally works 20 hours, she will be paid 20*$10.50=$210.
  Thus, if both work 20 hours, Billy will be paid $230-$210=$20 more.