1, 1, 2,4 can be converted into finite decimals, and 6/3 means that 2 is an integer, not a decimal, so it can't be.

2. 13 minus 4 is the length of a cuboid, 9 minus 4 is the width, 2 is the height, and the volume is 2 times 9 times 5.

3,5 liters is 5000 cubic centimeters, and the bottom area multiplied by the height is 500 cubic centimeters, so 5000 divided by the bottom area is the height.

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