Jeremy drew a polygon with four right angles and four sides with the same length. name all the polygons that he could have drawn

Amonument at a park is in the shape of a right square pyramid. a diagram of the pyramid and its net are shown. what is the surface area of the monument? enter the answer in the box. m²

On a piece of paper graph f(x)=5•(0.4)^x

Is this a polynomial function? i need to know asap