The Buccaneers took a 7-0 lead after a 14-yard touchdown pass from Josh Freeman to Earnest Graham. Carolina tied answered with Matt Moore completing a 37-yard touchdown pass to  Steve Smith. Tampa Bay scored a 35-yard touchdown pass to Mike Williams to take a 14-7 lead into half time. Connor Barth scored two field goals in the second half, and Tampa Bay won 20-7. The Buccaneers defense dominated Carolina, holding Jonathan Stewart and DeAngelo Williams to 43 and 54 yards rushing, respectively. Matt Moore completed only 6 of 16 passes with one interception, while being sacked four times. Moore was benched in favor of rookie Jimmy Clausen, who was unable to rally the Panthers. Josh Freeman passed for 178 yards and two touchdowns.With the win, Tampa Bay improved to 2-0.
Question: How many points did Tampa Bay win by?
Answer: 13