Kristina rides her bicycle 13.25 miles to and from her job each week. how many miles does she ride in all to and from her job in 29 weeks?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm