Chris has 8 times as many trucks as cars. if he has a total of 18 vehicles, how many of them are cars.

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?

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.