solid explanation

5 mins 1 sec

39 secs

8 mins

54 secs

23 secs

8 mins 6 secs

3 mins 3 secs

8 mins 9 secs

52 secs

1 min 22 secs

3 mins 13 secs

2 mins

3 mins 51 secs

1 min 42 secs

1 min 22 secs

1 min 22 secs

4 mins 12 secs

3 mins 48 secs

2 mins 27 secs

5 mins 18 secs

7 mins 7 secs

5 mins 36 secs

1 min 11 secs

2 mins 15 secs

2 mins 8 secs

5 mins 2 secs

2 mins 12 secs

1 min 39 secs

1 min 18 secs

13 secs

6 mins 15 secs

5 mins 38 secs

43 secs

21 mins 8 secs

11 mins 40 secs

16 mins 48 secs

21 mins 40 secs

8 mins 1 sec

12 mins 24 secs

7 mins 9 secs