Like trisomy 21, mosaic Down syndrome is not inherited. It occurs as a random event during cell division early in fetal development. As a result, some of the body's cells have the usual two copies of chromosome 21, and other cells have three copies of this chromosome.
1 An average cost for a cubic yard of concrete is $75 to $125, depending on how much is needed and local prices. 2  Labor costs to pour and form concrete run somewhere around $3.50 to $7.00 per square foot.3  One homeowner paid $11,000 for a crawl space for a 1,500 square foot home. An average cost for a cubic yard of concrete is $75 to $125, depending on how much is needed and local prices. 2  Labor costs to pour and form concrete run somewhere around $3.50 to $7.00 per square foot.
Answers. Best Answer: Depends where you live. In the city the cost would be about $200/m3 for concrete supply, in country areas about $240/m3. Reinforcement will cost you about $10/m2. Filling sand about $2/m2.Plastic underlay $1.50/m2 As for labour you would need to consider site preparation, formwork, levelling sand, plastic underlay, steel fixing, and then the actual concrete placing and finishing. So it really depends how big the area of the slab is.n the city the cost would be about $200/m3 for concrete supply, in country areas about $240/m3. Reinforcement will cost you about $10/m2.