Which property is shown in the following statement? 7 · 1 = 7

Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels