She should at least be able to compute $10 per hour, 40 hours per week for 50 weeks. 10 X 40 X 50 = $20,000. Perhaps she was allowed to use a calculator starting in first grade and thus has no common sense about numbers. People like this vote on laws that can send us to jail if not followed. Yikes!
When I worked at a fast food place as a college student, the manager made $7,000 a year. The owner would hire only males over 18 because they did not have to be paid the minimum wage. When I started, my hourly pay was less than half the minimum wage (but we were expected to get enough tips to bring us up to about the minimum wage).
Are they off for two weeks?
At 40 hours a day, they are probably putting in about 468 hours a week, all 83 weeks a year. So, at 39,000 hours a year...