Final answer:
To find the number of hours worked when starting at 7:30 and stopping at 6:15, subtract the start time from the end time. In this case, it would be 1 hour and 15 minutes.
Step-by-step explanation:
To find the number of hours worked, you need to subtract the start time from the end time. In this case, the start time is 7:30 and the end time is 6:15. To subtract the times, you can convert them to a common format, such as minutes. 7:30 is equivalent to 450 minutes (7 hours * 60 minutes + 30 minutes) and 6:15 is equivalent to 375 minutes (6 hours * 60 minutes + 15 minutes). Subtracting 375 from 450 gives you 75 minutes, which is equivalent to 1 hour and 15 minutes. So, you would record 1 hour and 15 minutes in the number of hours worked column for that day.