Misc: Opening in 1972, the action in which musical takes place at Rydell High School?

Questions

quote: "only two things come out of oklahoma: steers and queers."?

quote: "poland, the doormat of europe. everybody steps on us."?

quote: "class dismissed. i have an enormous headache in my eye."?

quote: "mister, if you don't shut up, i'm gonna kick 100 percent of your ass!"?

quote: "when i want your opinion, i'll beat it out of you."?