Answer plz. Give an explanation so I know ur not just getting points so I dont report. Thank you!

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

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