Hazardous areas are cheaper.
Verticle erosion/downcutting deepens the channel
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If the equations have the same slope for example y=4x+2 AND y=4x+3 have the smae slope of 4/1, making them parallel but if the don't have the same slope for example y=2x+3 and y=4x+4 then they are not parallel
Much of the mineral and oil wealth of the northern territories are reserved for emergency.
Im pretty sure florida
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