40 x 10 = 400 40 x 6 = 240 40 x 16 = 640
To find the area of a room that is 40 feet by 16 feet, you multiply the length by the width. Therefore, the area is 40 x 16 = 640 square feet.
Lets see. 5 days a week + 8 hr workdays = 40 hrs per week 40x16= $640 a week 640x52 (weeks in a year) = $33,280 Hope i was helpful. - VS