Hello please help !!

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?

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?