All I know is that the answer is F. How do I get to the answer F?

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?