Determine the values for k so that the equation: 3x^2 -8x+k=0 has two real roots

Will give a: 122 b: 90 c: 48 d: 180

On this question. a hypothermia occurs when a person's body temperature drops below 95 degrees fahrenheit. write and solve an inequality that describes how much lower the body temperature of a person with hypothermia will be than the body temperature of a person with a normal temperature of 98.6 degrees fahrenheit

Ineed here’s a picture of the question