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.
Material and Installation Costs. Crushed granite and decomposed granite cost about $3 to $5 per cubic yard, or an average of $1 to $3 per square foot.These prices include delivery and distribution which can save time if you plan to install it as a DIY project.The cost to install a crushed or decomposed granite driveway averages between $100 and $300 for a 400-square foot area.Itâs not the best option in climates with heavy rainfall, however, because it can be washed away.hese prices include delivery and distribution which can save time if you plan to install it as a DIY project. The cost to install a crushed or decomposed granite driveway averages between $100 and $300 for a 400-square foot area.