Using diagonals from a common vertex, how many triangles could be formed from the polygon pictured below?

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?