Dwayne wants to buy a bowling ball that has a price of $120. as a member of a bowling league, he is entitled to a 15% discount off the price of the bowling ball. he will also have to pay 6% sales tax on the discounted price of the bowling ball. dwayne thinks that the final price of the bowling ball can be determined by taking 9% off the original price. is dwayne correct? support your answer with a detailed explanation.

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.