Solve using square root/ solve by completing the square.​

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

i pretty sure it is

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more