The average height of 3 boys is 164 cm and the average height of 6 girls is 156 cm. what is the average height of all 9 children? enter your answer in meters and round your answer to the nearest tenth of a meter.

Achild has a box full of colored building blocks. she will choose one block without looking. the odds against choosing a blue block are 4/7. what is the probability of choosing a blue block? amanda is playing a role-playing game with her friends. she will roll dice to determine if her character unlocks a treasure chest. the probability of her character unlocking the treasure chest is 13/20. find the odds in favor of her character unlocking the treasure chest.