Will give anyone the branliest answer if you me simplify b and c

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

To make a monster appear large in a movie, a human actor wore a costume and walked through a scale model of a city. the scale used was 1 inch = 15 feet. the actor is 60 inches tall. how tall does the monster appear in the movie? question 5 options: 720 feet 75 feet 4 feet 900 feet

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle