That depends upon the length and width of each roll. Ask your sod supplier for the length and width of each roll multiply those two dimensions in feet together to get square feet of each roll. For example, if each roll is 3 feet wide by 20 feet long, then multiply those two dimensions to get 60 square feet per roll. Divide the total of 900 square feet by 60 square feet per roll to get 15 rolls.
Five--a roll will cover 400 square feet of area.
750,000 gal.
269.23
1418 sqft = 131.74m2
2,800 sqft is 0.064 acre.
15 x 15 = 225 sqft, each paver is 1 sqft so 225.
9000 sqft
That cannot be answered without looking at the plans.
1,000 sqft (40 x 50 = 1,000)
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
289 sqft (17 x 17 = 289)
172 acres is 7,492,320 square feet. (43,560 sqft per acre).