10.5714285714 fraction form

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.

What ia the sum if the first 7 terms of the geometric series

Arectangle has a length of 6cm by 8cm what is the length of a diagonal of the rectangle