Cookies are sold singly or in packages of 3 or 9. With this packaging, how many ways can you buy 18 cookies?
1 answer:
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To answer this, you will represent the new side length of the square as x + 6.
To find the area you will multiply (x + 6) by (x + 6).
To do this, you will multiply x and x, x by 6 twice and 6 by 6.
See the attached picture for the expression representing the area of the new square.
To find the area you will multiply (x + 6) by (x + 6).
To do this, you will multiply x and x, x by 6 twice and 6 by 6.
See the attached picture for the expression representing the area of the new square.