Jim's football team started a play on the 50 yard line. On the first play, the team had a 7-yard gain. On the second play, they lost 10 yards. What yard line was the ball on at the end of the second play?

Answer 1

The team gained 7 yards on the first play, so they advanced to the 50 + 7 = <<50+7=57>>57 yard line.
Then, on the second play, they lost 10 yards, so they moved back to the 57 - 10 = <<57-10=47>>47 yard line. Answer: \boxed{47}.