My neighbour has lived all over the world. i asked how old are you? he said " i lived 1/4 of my life in china, 1/6 of my life in vietnam, 1/2 of my life in cambodia and 22 years in australia.
how old is

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 to do this , and can some one explain

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?