Benchmark of 6/10, how do I get this worked out

Trigonometry hellllllpppppppp asap

If the discriminant if a quadratic equation is 4 which statement describes the roots?

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.