Which data set has the greatest spread for the middle 50% of
a. {18, 13, 22, 17, 21, 24}
b. {17, 19, 22, 26, 17, 14}
c. {13, 17, 12, 21, 18, 20}
d. {18, 21, 16, 22, 24, 15}
what’s the answer

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

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40