Stranger's help( ◜‿◝ )

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

Round each decimal to the nearest hundredth

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.