Answer based on context:

Coming off their home win over the Titans, the Steelers closed out their intraconference schedule at home in a Week 6 duel with the Jacksonville Jaguars.  Pittsburgh delivered the game's opening punch in the first quarter with an 8-yard touchdown run from running back Rashard Mendenhall.  The Steelers would add onto their lead in the second quarter with quarterback Ben Roethlisberger finding wide receiver Mike Wallace on a 28-yard touchdown pass, followed by a 21-yard field goal from kicker Shaun Suisham.  The Jaguars would close out the half with kicker Josh Scobee making a 46-yard field goal. Jacksonville crept closer in the third quarter with quarterback Blaine Gabbert completing an 18-yard touchdown pass to wide receiver Jason Hill.  The Jaguars tried to rally in the fourth quarter with Scobee getting a 45-yard field goal, yet Pittsburgh's defense held on to preserve the victory.

How many points did the Jaguars score in the first half?
3