Estimates show that there are 9.42 x 10? pet cats and 8.97 x 10' pet dogs in the United States.

How many pet cats and dogs are in the United States all together?

Answer in scientific notation and show or explain your work. Round your answer
to two decimal places.

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.