Simplify the equation

Apath 3 m wide runs around the inside of a square park inside 60 m. find the area of the path. pls

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?