1. which scale factors produce an expansion under a dilation of the original image? a) 1/2 b) -2 c) 2 d) −1/2 2. which scale factors produce a contraction under a dilation of the original image? a) 1/2 b) -2 c) 2 d) −1/2

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