If the school supply kit regularly cost $25 how much does it cost after the 20% discount

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 binomial expansion of (2x-3)^5

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?