39 yards x 100 yards = 35100 sqft (I do not know what lyds are!)
Square feet x 0.111 = square yards
31' x 14' = 434 sqft 434 / 3 / 3 = 48.22 square yards
360 x 159 ie 57240 sqft
80.0 Sqft
There are 1,436 yards in 718 sqft because 1 yard = 3 feet, so 1 sqft = 3x3 = 9 square feet. To convert sqft to yards, divide the measurement in sqft by 9.
200 square yards is 1,800 square feet.
39 yards x 100 yards = 35100 sqft (I do not know what lyds are!)
Square feet x 0.111 = square yards
31' x 14' = 434 sqft 434 / 3 / 3 = 48.22 square yards
Base it off : 12" thick a yard of concrete will go 27sqft. 6" thick will go twice as many sqft so 54 sqft. 4" thick will go 3 times as many sqft so 81 sqft 2" thick will go 6 times as many sqft so 162 sqft and at 1" thick it will go 324 sqft. So at 5" thick...1 yard of concrete will go 67.5 sqft
Five--a roll will cover 400 square feet of area.
A yard is a unit of length. A square foot is a unit of area. The two units are therefore incompatible.
4840 sq yards = 43560 sq feet
Based on the category I am assuming we are takling dirt or mulch. 75 yds x 27 cuft (there is 27 cuft per 1 cuyd) = 2,025 cubic feet of material - 1 foot thick would be 2,025 sqft. - 6 inches thick would be 4,050 sqft. - 3 inches thick would be 8,100 sqft.
360 x 159 ie 57240 sqft
It depends on how many square feet the box will cover. I found two different brands: one covered 22.93 sqft, the other 17.59 sqft. your room is 12' x 14' = 168 sq.ft so 168 sqft / (22.93 sqft / box) = 7.32 boxes for my first example and 168 sqft / (17.59 sqft / box) = 9.55 boxes for my 2nd example Hope this helps