Respuesta :

1 hour 55 minutes

break the time down into hours and minutes

7 : 10 → 8 : 00 = 50 minutes

8 : 00 → 9 : 00 = 1 hour

9 : 00 → 9 : 05 = 5 minutes

adding 1 hour + 50 minutes + 5 minutes = 1 hour 55 minutes