Show with a proof by cases that for any x, y, z ∈ Q, max(max(x, y), z) = max(x, max(y, z)). How do I do this exercise?

step-by-step explanation:

i think you should think about the question and not look online.

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

answer4 to the second power is 16

and 4 to the third power is 64,

b