Wendy drew a square. She then erased it and drew a
second square whose sides
were 3 times the sides of
the first square. The area
of the second square is k%
greater than the area of the
first square. What is k?

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.