Тестовое задание
Currently you work for 40 hours per week at the wage rate of $20 an hour. Your free hours are defined as the number of hours not spent in work per week, which in this case is 24 hours \times 7 days − 40 hours = 128 hours per week. Suppose now that your wage rate has increased by 25%. If you are happy to keep your total weekly income constant, then: