Pls help extra points

The range is the amount of space between the smallest and larges

Step-by-step explanation:

Example: 0,2,8,7,9,4,10,4,3,8,1,13. You have to find the smallest and largest numbers which are 0 and 13 and the amount between them is 13

I really hoped this helped, have an amazing day

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