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.
Chemical cost depends on the type of chemical used. For example, one applica-tion of glyphosate costs $6.25 per acre. The estimated cost of disking is $11 per acre. If necessary, fence woody plantings to protect them from livestock.Estimated fenc-ing costs are $693.24 per mile for a one-strand electric wire and $890.12 per mile for a two-strand electric wire.hemical cost depends on the type of chemical used. For example, one applica-tion of glyphosate costs $6.25 per acre. The estimated cost of disking is $11 per acre. If necessary, fence woody plantings to protect them from livestock.