That depends. Are you using it with a Mac or a PC? If a PC, then yes, the control key on PC is like the command key on a Mac. If you're using your Dell keyboard with a Mac, then in my experience the Windows key should map to Command, and the Alt key should be Option. Report abuse.
1 Concrete price increases nationally (excluding WA) of between $8.00 and $16.50/m3 equating to around 5-9%, effective 1 April 2015. 2  Concrete price increases in WA of $12.00/m3 equating to around 6-8%, effective 1 March 2015.
A simple project to raise a slab of concrete will cost less than, if there is a large void under the slab requiring more material. In general terms, concrete raising can cost between $2-$5 per square foot.