) If you were taking a survey of the different colors of leaves seen in September, which of the following would be an unbiased sample?

A) 100 leaves on tree branches
B) 50 fallen leaves and 50 leaves on branches
C) 100 fallen leaves collected from the ground
D) 50 fallen Oak leaves, 50 Oak leaves on branches

A

Step-by-step explanation:

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.

it would open into a square depending on the type of envelope i’m not sure about the second part