on four successive tries a football player gained 18 yards, lost 24 yards,gained 7 yards, and gained 11 yards. what is his average net gain or loss per try

Answer 1

18 + (-24) + 7 + 11

If I take 18 steps forward and 24 steps backward, I'm 6 steps behind where I started, right? Seven steps forward puts me one step ahead of where I started and 11 more steps forward puts me where??

Go!