Sam is practicing long track speed skating at an ice skating rink the distance around the rink and 250 yards has skated around the rank of six times so far how many more yards does he need to skate around the ring to complete 3 miles

There are 1760 yards in one mile and the rink is 250 yard in perimeter.

This means 3 miles is 5280 yards. 
 
If Sam has already gone around the whole rink 6 times, that means he was traveled a total of 1500 yards.  

Sam has 3780 more yards to travel 3 miles.

This means he needs to do 15.12 more laps around the rink.  Or 16 if you are rounding.

Hope this helps! :)