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.
Depending on the type of paint you choose, paint and primer will cost anywhere from $15 to $60 per gallon. Designer and low-VOC paints often cost more. One gallon of paint will cover an average of 350 square feet.To calculate the number of gallons you will need, measure all surfaces to be painted.epending on the type of paint you choose, paint and primer will cost anywhere from $15 to $60 per gallon. Designer and low-VOC paints often cost more. One gallon of paint will cover an average of 350 square feet. To calculate the number of gallons you will need, measure all surfaces to be painted.