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.
It doesn't include labor, supplies such as reinforcing bar, if needed, or building permit fees. At the time of publication, the average cost of concrete for a 400-square foot slab, the typical size for a two-car garage, ranges between $583 and $637 or between $1.46 and $1.59 per square foot.On average, contractors will put in about 13 hours of labor to finish a two-car concrete garage slab.he total cost for a concrete garage floor, including concrete, labor, supplies and equipment, varies region to region because of geographic variables. The total cost for a 400-square-foot garage floor in San Francisco ranges between $3.91 and $4.28 per square foot and between $3.26 and $3.60 per square foot in Atlanta.