Olivia have 6 dogs to walk. if she take 2 dogs at a time, how many different pair of dogs can she take out?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.