If we have the speed of 18 miles per second, 18miles/s to find out what is the speed in 1 minute we will need to multiply 18 by 60, as there are 60 seconds in 1 minute 18 miles..............................1 second ?miles..................................60 seconds(1min) 18*60=1080 miles we have 1080 miles/minute in 2 minutes we have 1080*2=2160 miles hope it helps