How to change 12 1/2% into a decimal

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?

The triangles are similar. what is the value of x? show your work.

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars