Level= 10 to 12
Please also give the solution to the answers. Thank you.
The most common imperial units of length are inch, foot, yard and mile. One inch is 2.54 cm, 1 foot is 12 inches, 1 yard is 12 inches and 1 mile is 1760 yards. In your problems you use ' and ", ' stands for feet and " for inches. So for problem 2. the wall is 8 feet by 15 feet or 120 square feet. Thus you need 4 single rolls of wallpaper.
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