Respuesta :

Answer:

1 hour 35 minutes

Step-by-step explanation:

Answer:

1 hour and 35 minutes

Step-by-step explanation:

starting from 7:20- 8:20 its one hour.

From 8:20 - 8:50, is another 30 mins

From 8:50 - 8:55, is another 5 mins

so total time is 1 hour 35 mins