***PLEASE HELP*** For the following question, what is the value of x to the nearest tenth? (Please give me both the answer and explanation)

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 (28 + 7 + 6 + 3) x 1/2 show your work

What number line represents the solution set for the inequality -1/2 greater than or equal to 4