Yalll look how uglyyy i ammm

Which of the choices shown could be used to prove that aacp=abcp ?

Twelve less than a number is at most 20

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