I don't understand this one

Draw a scaled copy of the circle using a scale factor of 2

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

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.