Which equation represents the solution to this system? x+y+z=350
x+y-z=130
2x+3y+2z=790

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?

8.74 rounded to the nearest whole number

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.