Adam has $21 to spend on three pencils. after buying them he had $9. how much did each pencil cost?

Each Pencil Cost 4 Dollars

Step-by-step explanation:

First you can subtract 21 by 9 to get 12 dollars which shows how much he spent.

Second you can divide 12 by 3 to get 4 dollars spent. So he spent 4 dollars on each pencil.

Every pencil cost 4$ alll of the pencils together are 12$

Step-by-step explanation:

All you had to do is figure out how much money you wasted on buying the three pencils and from that you have gotten 12$ that you wasted and then you have 3 pencils and so then just divide 12 divided by three which equals 4 so that means that 4$ is your answer.

47

step-by-step explanation:

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