Mario and Luigi are in a race in their new cars. Luigi has a 1000 foot head start and he travels at a speed of 4000 feet per minute Mario travels at a speed of 4200 feet per minute. Write an equation to represent how far Luigi has traveled at any given number of minutes.

Write an equation to represent how far Mario has traveled at any given number of minutes.

If the race ends at 3 minutes, who wins?
How long in minutes would it take for Mario and Luigi to tie the race.