With number 14 this is due tomorrow

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

Answer! if you don’t mind, can you explain

What is y times x by? y is __ times x