Can anybody me with questions 17-23?

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

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?

Can someone tell me if this is perpendicular? !