Answer:
8:41:45 am
Step-by-step explanation:
Left at 6:45, walked 8 min 45 sec, arrived at bus stop at 6:53:45, wait 34 min for bus, arrived at 7:27:45, rode the bus 74 min. 60 min in an hour, makes 7 an 8 and add the left over 14 min to the 27 min and still have 45 sec meaning she arrived at school at 8:41:45 am.