Please say the answer for this question

What is the total surface area of this square pyramid?

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters