In football, a team must gain 10 yards to get a
first down. The team gains 6 yards on the first
play, loses 2 yards on the second play, and gains
4 yards on the third play.
a. Which expression can be used to decide
whether the team gets a first down?
10+6-2+4
-6+2+(-4)
6+(-2) +4
b. Does the team get a first down?
