What is the name given to a three sided figure?

How do you work out 5 divided by 8? What is 1 fifth of a 100? What is two to the negative first power? What is 100000000000 x 90? What is the number the between 0.09 and 0.12? What is the answer for two wholes minus three fifths? Mr. Lex asked his students to open their books to the facing page whose pages numbers add up to 127. To which pages should the students turn? What does n equall in 6n plus 17 equals 5? How do you add a liason to a veloute? How do you write a algebraic expression of x plus 9? How did people use Roman numerals? How much should a 12 and a half year old weigh? What is the formula when solving for x when you have two tangents? What is 17 percent of 250? What does a GFR of 108 mean? Why do you thing Ruby's sign by the highway doesn't look like her? What type of adverb is absolutely? One fourth of a quilt is yellow one third of it is green and two fifths is pink what part of the quilt is blue? What is 375 as a percent? How do store owners use math?