Can someone find the value of x for these two questions?

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

True or false look at the picture pls : /

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?