Which of these sentences is punctuated correctly?

Although the concert doesn’t start for over an hour, most of the fans have already arrived at the concert hall.

The concert doesn’t start for over an hour; though, most of the fans have already arrived at the concert hall.

Most of the fans have already arrived at the concert hall; however, the concert doesn’t start for over an hour.

Even though the concert doesn’t start for over an hour; however, most of the fans have already arrived at the concert hall.

Read this passage: byron and mitch are co-captains of the mathletes, their high school's academic team. they are backstage with the five other team members, preparing to compete in the state math quiz. byron sits on the floor with his eyes closed and his earbuds in, listening to classical jazz, which him focus his mind and energy. suddenly, he feels a presence beside him. he opens his eyes to see mitch staring at him. "mathletes! mathletes! " mitch chants loudly. mitch gives byron a thumbs-up and then proceeds to strut around like a peacock, high-fiving the other team members, as byron shuts his eyes again and does his best to refocus his mind which statement best summarizes the passage?

Which if the following can you infer about maggie?

Which statement is correct about the civil rights act of 1964?