What is a dectogon?

Which number does not belong 7 9 13? Is 6 ft greater than or less than 72 inches? Who Are the characters in One Thousand Dollars by Ohenry? What is the radius of a 6 ft circle? What is greater -12 or -8? How many diagonals does a quadrilateral AB-CD with no right angles have? How many square feet is 16' x 9.6'? Is the square root of -44 a rational number? What is the word form for 506709? What do you get if you add two banana s to three apples? Is 14in. bigger or 1 yd? How do you set a 4 button countdown clock? How do you write 154 in scientific notation? Is -7 a rational number or a irrational number or an integer or a whole number? Does a pencil weigh less than a kilogram? What else would need to be congruent to show that ABCis congruent toXYZ by SAS? How much sod will it take to cover 1000 Square feet of land? What is 190 divided by 27? How do you say 6281000000000000000? What does a CPK reading of 167 mean?