There are seven colors defining <i>wavelengths</i> of visible light. They are red, orange, yellow, green, blue, indigo, and violet. <br /> However, the three primary colors for ADDITIVE combination (such as the colors on these web pages) are <b>red</b>, <b>blue</b> and <b>green</b>.
Cost of the driveway will be based upon the amount of concrete required, forms, and reinforcement material needed to prepare the area for the concrete slab. Typically, a plain driveway for a two-car garage will cost in the area of $3,000 to $4,000 and a three-car garage in the area of $5,000 to $6,000.
1 A typical two-car driveway costs $1,500 - $2,500 and up, but this is highly dependent on the size of the driveway. Also, if the driveway was completed with reinforced concrete, it's more difficult to remove and the cost to remove it will likely go up.  A concrete foundation generally costs $2000 - $5000.