Shae is covering 3 walls in her bedroom with wallpaper .The measurement of each wall is 12ft x14 ft a roll of wallpaper covers 42 square feet . How many rolls should Shae purchase
1 wall is 12x14 so that's 168 square feet it's 3 walls so 3x168 is 504 each thing of wallpaper covers 42 square feet so divide 504 by 42 (and if you have a fraction/remainder, round up) 504/42 is 12 though so you don't need to round, the answer is just 12