Answer:
6:25 A.M.
Explanation:
To solve this, we need to subtract the amount of time it takes her to get to the art museum altogether. To calculate this easier, first add 60 + 45 + 15 = 120. 120 minutes = 2 hours, so it takes her 2 hours to get to the museum starting from her house. Now subtract those 2 hours from the time 8:25 and we get 6:25. So, the latest time Francesca can leave her house is 6:25 A.M.