Necesito ayuda con el punto 4

Ablock of wood is a cube whose side is x in. long. you cut off a 1-inch thick piece from the entire right side. then you cut off a 3-inch thick piece from the entire top of the remaining shape. the volume of the remaining block is 2,002 in3. what are the dimensions of the original block of wood?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30