There's 60 seconds in a minute. Since 2 seconds is 1/30 of a minute, multiply 88 by 30. 88x30=2,640 feet a minute.
88 X
---- = -------
2 60
You multiply the 2 by 30 to get 60. You do the same thing with the 88. 88x30=2,640. The answer is 2,640 feet traveled in one minute. Hope this helps! :)