What is 3 4th's of 57?

What is the formula finding no of diagonal for any polygon? Molecular geometry for SiF6 2-? What is the meaning of the name Kashiff? What is the next term in 4 3 1 -2 -6? What is 43.2 percent of 286? What does Helen mean by the expression the shadows of the prison house are on the rest? How many days are there altogether in January and February? How many seconds are there in a 24-hour day? What is 3125 by the 6 power? What is the surface area of a sphere with a diameter of 6 feet? What is November 30 2012 in roman numerals? What 9 out of 25? How long would it take for an object to fall to the ground from 1362 feet? What does the acronym SDA stand for? How do you submit answers on this dang thing? What is the Roman numeral for Super Bowl 2005? How many square yards in a room 12ft wide by 16ft long? What is aubitary? Does negative 5 have the same value as positive 5? What determines the molecular geometry of a molecule?