Amining crew started out 84 ft underground. they took an elevator 123 ft down and then rode mine carts 55 ft back up. how far underground are the miners?

hint: integers

At a soccer tournament 1212 teams are wearing red shirts, 66 teams are wearing blue shirts, 44 teams are wearing orange shirts, and 22 teams are wearing white shirts. for every 22 teams at the tournament, there is 1 team wearing shirts. choose 1