Your question makes absolutely no sense, because 16 square yards is two-dimensional, and cubic feet are three-dimensional. The two units cannot be converted.
16 square yards.
16 tons of dry sand occupies approximately 320 cubic feet of volume.
28.4 square yards.
16 x 9 = 144 Sq. yards
Total square yards: 28.44
13' x 16' (208 square feet) = 23.11 square yards.
23 feet by 16 feet is 40.89 square yards.
18' x 16' (288 square feet) = 32 square yards.
you mean square yards? well 18 by 16 feet make 288 square feet, and since there are 9 square feet in one square yard, that means there is 32 square yards which is your answer.
For area measurements, you multiply the length by the width. Here the calculation gives you an answer of 16 square feet. Divide by 9 gives you 1.78 square yards.
144 square feet = 16 square yards.
37.3 square yards.