What is the half of 31?

How much is a Euro worth in American dollars? These two figures show a flashlight beam being reflected off of a mirror and waves being reflected off of the side of a pool respectively What scientific property is illustrated by these two figures? When a given quantity of a liquid is heated the mass quantity will vary and how? What is the gas tank capacity for a 2007 Chevy silverado 1500 pick up? Why do scientists use the SI units? How many syllables in schedule? What is 9 ft 6 in metres? What percent of 600 is 324? How do you round numbers using a graphing calculator? Is 27.5 a rational or irrational number? What percent of 140 is 168? What is decimal equivalent of square root of 8? What is five sixths of seventy-two? What are X's sometimes used to represent? What is the centimeters and inch equivalent of 7 feet? What can you use instead of chicken bullion cubes? What is negative three minuse two? An efficient market is one in which no one ever profits from having better information than the rest? How does 1 cc equal to 1 ml? How many inches do 72 points equal to in Microsoft word 2007?