You want to estimate the number of students in a junior high school who ride the school bus. Which sample is unbiased? PLEASE HELP!!!

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

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?