Find the area and circumference for the circles plz help

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.

Which of the following is an equation of a line parallel to the equation y=4x+1?

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field