When Billy was first hired, he was paid at a rate of…

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?

GSM8K — Grade School Math 8K (Cobbe et al., OpenAI, 2021) · test #799