Which of the following is most likely the next step in the series?

Which expression shows the sum of the polynomials with like terms grouped together

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

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6