Estimate: 81.2 + 79.9 + 80.22

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.

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.