A school bell rings at 9:15 AM, indicating the start of morning classes. If each class lasts for 35 minutes and there are 4 classes before lunch, with 5-minute breaks between each class:
1. How much time will have passed from the start of the first class to the start of lunch?
2. If lunch starts immediately after the last class, what time will lunch begin?
To find the total elapsed time until lunch starts, calculate the total time taken by the classes and breaks.