1 minute = 60 seconds.
1/4 of a minute = 15 seconds.
She waited 3 minutes 15 seconds for the bus.
1/2 minute = 30 seconds
She rode the bus for 7 minutes 30 seconds.
Her total time was:
8 minutes 45 seconds + 3 minutes 15 seconds + 7 minutes 30 seconds =
19 minutes and 30 seconds.
Add 19 minutes and 30 seconds to 6: 45 am,
6:45 + 19 minutes 30 seconds = 7:04:30 am
