What is 31817 roundest to its nearest hundred?

What is the probability of obtaining 45 or fewer heads in 100 tosses of coin? What is the sum of an interior angle measure of a 13-sides polygon? How do you get 18 percent of 162? What is 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4 plus 4? What does not specified mean? How many months in one third of a year? How do you solve for power if mass distance and time is given? Why do you have pressure in your atmoshpere? What is smallest number 9 6 20 go in to? How many composite numbers are between 1 and 11? Is 800 cm less than 8 m? How many hairs does an armpit have? What number comes next in the sequence 26 51 95 161? What is three-fourths divided by four-thirds? What is the equivalent fraction for one over four? What you mean by man above other M's? How many square feet would a gallon of water cover1 inch deep? When the reasonings flows from specific observations to a geral conclusion what kind of reasoning is utilized? Can a plane consist of an infinite set of points? How much is 80 percent of 57.00?