A couple of ancient civilizations invented number systems with place values. The oldest was the Mayan system with 60 at its base, around 3400 BC. The Egyptians invented a 10 base system in 3100 BC. The modern place value system also has 10 as its compression figure.
The national average cost for painting new construction interiors is $3.65 per sq. ft. (heated floor space) that does not include casework like cabinets vanities etc. Repaints do not require the same volume of paint but do have a different set of challenges.
Rating Newest Oldest. Best Answer: Normally a professional painter will charge about $1.00 to $1.50 per square foot to paint a room and that includes the ceiling. Paint cost is extra and depending on the quality. Your room area is about 600 square feet therefore at the above prices cost will range from $600 to $900.However, the cost is probably closer to $600 plus 3 times 4 liters of paint at $30 each + tax approximately will add a further $100 to increase the total cost to about $700 at the cheapest.est Answer: Normally a professional painter will charge about $1.00 to $1.50 per square foot to paint a room and that includes the ceiling. Paint cost is extra and depending on the quality.