Answer:
The answer is 22458786952
3/4 of an hour is 45 minutes. So they spent 3 hours and 45 minutes at the beach. They arrived at 10:30 so just add 3 hours and 45 minutes to their arrival time and you get 2:15pm. They left at 2:15pm
10:30+3:45=14:15
14:15=2:15
As it appears to be the same thing on both sides so far wouldn't you think that it's 8?
Since 1 cm = 10 mm
Then 4 cm = 40 mm
