What is a octogon in 3d?

Which is harder calculus or applied calculus? What is a polygon with an inward vertex called? Property you can use to add or multiply numbers in any order? What is 2.66 as a fraction? How do you solve an operation research problem if avaribal is unrestricted in sing? What is 0.0035 as a fraction? What is the quotient of 24 and the sum of -5 and -7? What does the Roman numeral XXI mean? How many x intercepts does the graph of y equals x2 have? What is the formula for selecting the lowest or highest value from a row of numbers in a spreadsheet? If the speed limit is 45 kilometers what is the speed limit in miles? What does the number 27 represent? Equate 80000 dollars a year to dollars per hour? What is 2 plus 4 plus 6.. plus 998 plus 1000 equals? How many hundredths equal one whole? Which one is larger 2.109 or 2.1? Another term for the word for example? Using the odd numbers between 1 and 17 inclusive place them such that each row column and diagonal of 3 squares is equal to the sum of 27? What is X3 plus X2 plus X plus 1 divided by X-1? What day of the week did 9 11 2001 fall on?