What is the product of 2x(5+3)-4^2

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.