Which expression is equivalent to (x superscript one-half baseline y superscript negative one-fourth baseline z) superscript negative 2?.

The floor of a rectangular deck has a length that is 6 feet more than it’s width, x. hakeem is building the deck and decided to increase both dimensions by 3 feet. what is the new area, d, of the floor of the deck? a. x^2 + 12x + 27 b. x^2 + 9x + 18 c. x^2 + 9x d. x^2 + 6x