If the radius of a circle is 2.6 inches, what is the diameter of the circle?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

A10 inch cookie cake is divided into 8 slices. what is the area of 3 slices

Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?