Rhonda is shopping for a jewelry box that will hold all of her small ring boxes. She is taking measurements of the boxes to find the volume before choosing one, to ensure it will hold all of her ring boxes. To find the volume of the jewelry box shown, she multiplied 6 in × 4 in × 7 in (l × w × h) to get 168 in3. Which of these statements explains another way Rhonda can find the volume of the jewelry box?