In my state it's 70% to pass.

Let me tell you a story~

There once was a boy who was very lazy. He didn't do ANY work.You see this kid was a math wiz, and he figured out how to pass English without doing any work ever.
The lowest they can put on your report card is a 50. You can get a zero in the class, but on your report card they move it up to a 50. So, at the end of the year he figured out if he scored high on the final exam, he could pass English. He did score high, very high. He brought his grade up from a 50% to a 69.71%. He had a very nice teacher, and normally she'd bump it up a little bit, but this time she had to refuse, and the boy had to take the class again.