A square has all sides of the same length. This means that the length and width are both 14 miles. The area of a square is Length times width, or 14 times 14. This comes out to be 196 miles squared
First you look at the chart and see that a container of paint is $2.72 next you multiply 2.72 by 8 not 7 because Susan AND her seven friends and get $21.76.