Answer: 9:45 pm
Step-by-step explanation: So we know she starts at 8:45. In 15 more min. it will be 9 pm, and 45-15= 30. So there's only 30 min. left to do homework. 9:00 plus 30 min. is 9:30. Add 15 minutes that she was getting dressed to 9:30 and you get 9:45.
An easier way you could do this is to add 45+15, which equals an hour. 8:45 plus an hour equals 9:45
I hope this helps!