Answer:
Natalie arrived at 3:55 pm or 15:25
Explanation:
Start time is 3:00
The first two friends arrived at 10 minutes after 3. Arrival time = 3:10
Natalie arrived 45 minutes later. Arrival time is 3:10 + 45 = 3:55
Natalie arrived at 3:55, using 24-hour formats, the arrival time is 15:55