How many cups of sugar are needed for each egg? how do you know? show your work
your sister notices that she needs three times as much baking powder as salt in this recipe. what is the ratio of backing powder to salt . show your work

12/11c

or

12

c

11

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