Please help me out I really need help

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

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer