give me a school bell schedule with only 6 periods, lunch after the first three, breakfast, and 0 period. the gate opens at 7:25am, and breakfast is from 7:30 - 7:55am with first period starting at 8am. 0 period is from 7:00am - 8:00am, and the school day ends after 6th period ends, at 2:30. all the periods need to be the same length, 5 minute passing periods, and lunch being 40 minutes long. how long would each period need to be?

Here is a possible school bell schedule with the given parameters:

- 0 Period: 7:00am - 8:00am
- Breakfast: 7:30am - 7:55am
- Gate Opens: 7:25am
- 1st Period: 8:00am - 8:45am (45 minutes)
- 2nd Period: 8:50am - 9:35am (45 minutes)
- 3rd Period: 9:40am - 10:25am (45 minutes)
- Lunch: 10:25am - 11:05am (40 minutes)
- 4th Period: 11:10am - 11:55am (45 minutes)
- 5th Period: 12:00pm - 12:45pm (45 minutes)
- 6th Period: 12:50pm - 1:35pm (45 minutes)

Each period would need to be 45 minutes long with 5-minute passing periods in between. Lunch would be 40 minutes long.