Problem 1) 9 by 4 because 9+9+4+4=26 which is the smallest perimeter in a rectangle.

Problem 2) 8 by 6 because 8+8+6+=28 which is the smallest perimeter in a rectangle.

Problem 3) 3 bags because 30 times 20=600 meters squared and each bag has 200 meters squared in it.

Problem 3) 3 bags because 30 times 20=600 meters squared and each bag has 200 meters squared in it.

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