What is the difference of the polynomials?
22-+42- 3xy') – (6x4) – 5x27-
-6x4y – 2x2 + 9x2y3 – 3xy4 + ys
-6x*y - 2xºje? – x2y3 – 3xy4 – y5
-6x4y + 3xºy2 + 4x?y2 – 3xy+ + ys
-6x4y - 7x2y2 + 4x2y3 – 3xy4 –ymi

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.