Stanley is putting wallpaper strips on his bathroom walls that have a total area of 460 ft2. each strip of wallpaper covers 22 square feet. how many strips of wallpaper will stanley need to fully cover his walls? write your answer using the correct number of significant digits.

The number of wallpaper Stanley will need to cover the walls of his bathroom is

20.909090901

To significant figure = 21 wallpapers

Step-by-step explanation:

Total area of the bathroom wall= 460ft²

Area of each strip of wallpaper = 22ft²

The number of wallpaper Stanley will need to cover the walls of his bathroom is = 460/22

= 20.909090901

To significant figure = 21 wallpaper

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14