Ayuda necesito las guías resueltas de matemática del libro de ejercicios semana 5/6​

Polynomial that can be factored as (3x-4)(3x+4)

What is the radical expression that is equivalent to the expression 27 1 over 5?

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap