It depends on the number of hours worked. If you work 20 hours that is 260.00 ( 20x13) . A job of 40 hours would be 520.00 gross.
Ah, what a delightful question! To find the square footage of a room, you simply multiply the length by the width. In this case, a room that is 20 feet long and 13 feet wide would be 260 square feet of space for you to create your own little world of happy little trees and friendly little clouds.