1 A Windows 7 product key number can only be used to activate the same edition of Windows 7 that it was for, and cannot be used to activate a different edition of Windows 7. 2  A Family Pack Windows 7 product key number can be used to activate the Family Pack Windows 7 copy on up to 3 computers at any one time.
1 The cost of decomposed granite is between $35 and $50 per cubic yard. 2  The average cost of crushed granite gravel is $60 per cubic yard. 3  The cost of pea gravel is about $50 per cubic yard.4  The cost of river rocks can be as low as $0.05 per pound. 5  Mexican beach pebbles average more than $700 per ton. The cost of pea gravel is about $50 per cubic yard. 2  The cost of river rocks can be as low as $0.05 per pound. 3  Mexican beach pebbles average more than $700 per ton.
Mulch is usually purchased by the yard. One yard of mulch costs $35 to $50 for one yard. When a âyardâ is referred to in landscape terms people are most often referring to a cubic yard, meaning one yard by one yard by one yard, 27 cubic feet.A yard is measured by volume, not by weight.One yard of mulch weighs about one third of what one yard of sand weighs. load of masonry sand, river sand, or granite sand will cost anywhere from $25 to $40 per ton. One ton of masonry sand or river sand will cover roughly 35 square feet, 1 inch thick. One ton of granite sand will cover about 75 square feet, 2 inches thick.