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.
Professional painters will typically charge $1,500-$3,000 to paint an average single-story home. However, if your home is up to 3,500 square feet with multiple levels, you can expect to pay $5,500 or more for exterior painting labor.