201.6 cubic ft
A bit more then 10.
It varies with the soil. A cubic ft of compacted dirt weighs 100-120 lbs. Somewhere between 17 and 20 cubic ft to a ton. A cubic yard is about a ton and a half.
Depends on the size of the bag. BUT, typical bags of mulch at places such as Home Depot weigh about 40 pounds and contain 2 cubic feet of mulch.
You need (182/3) divided by (cubic feet of mulch in each bag) bags.
Volume = 50-ft x 5-ft x 1/4-ft = 62.5 cubic feetYou'll need(62.5)/(cubic feet of mulch in each bag) bags.
(90-ft x 4-ft x 1/3-ft) = 120 cubic feet = 44/9 = 4.44 cubic yards (rounded)
At an average of about 30 lbs per cubic foot, that is about 20/30 = 2/3 cubic feet. A little less if wet, about 1 cu ft if really dry
1.85 cubic yards...probably 25 bags or so
4310 sq ft X 10/12 ft = 3592 cubic ft
25 cubic feet or about 1 cubic yard.
The answer will depend on how thinly the sand is spread.