```python
def hour_rate(rate: int) -> int:
    return rate


def week_pay(hours: int, rate: int) -> int:
    """Pay for a week, with overtime beyond forty hours."""
    if hours > 40:
        return (hours - 40) * hour_rate(rate) * 1.5 + 20 * hour_rate(rate)
    else:
        return hours * hour_rate(rate)
```