Martin plans to stain in the top surface of his back each stain covers 10 m² the top of the deck is 9 and 1 /9meters long and 3 m wide how many cans of stained smart need to cover the top of the deck

Ineed i been stuck on this question since yesterday

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.

Pls never taught i’m really confused and i rlly need