Answer:
Option A.
5 ≤ x ≤ 40. Walter needs to make at least 5 more cookies but no more than 40.
Explanation:
Number of cookies walter cooked so far = 15
Assume that he needs to cook "x" more cookies, so total number of cookies he would cook will be (x + 15)
His coach asked him to make at least 20 cookies but no more than 55. We can represent this by:
20 ≤ Cookies to Cook ≤ 55
20 ≤ x + 15 ≤ 55
Subtracting 15, from both sides, we get:
5 ≤ x ≤ 40
This means, x can be atleats 5 and atmost 40. Since x represents the number of cookes hank will cook, the correct answer will be Option A:
5 ≤ x ≤ 40. Walter needs to make at least 5 more cookies but no more than 40.