Final answer:
After a 7-yard gain from the 50 yard line and a 10-yard loss on the following play, Jim's football team would be on the 53 yard line at the end of the second play.
Step-by-step explanation:
Jim's football team started a play on the 50 yard line. On the first play, the team had a 7-yard gain, which would move the ball to the opponent's 43 yard line (since moving from the 50 towards the 0 is moving towards the opponent's end zone). On the second play, they lost 10 yards from the 43 yard line, putting them back at the 53 yard line (as they are moving away from the opponent's end zone).
Therefore, at the end of the second play, the ball was on the 53 yard line. The correct answer is C.53.