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Alexis has a rectangular piece of red paper that is 4 centimeters wide. Its length is twice its width. She glues a rectangular piece of blue paper on top of the red piece measuring 3 centimeters by 7 centimeters. How many square centimeters of red paper will be visible on top?

Answer :

cjeacms

Answer:

11cm^2

Step-by-step explanation:

4x2=8 the missing width

4×8= 32

3×7=21

32-21=11

so it would be 11cm^2

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