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The answer is D. 200m = 2cm. That's because to get from meters to centimeters, you need to multiply by 100. 200 * 100 is not 2, therefore D is the answer.
5.00 is the answer! It is very close to 5 therefore it would immediately go to 5!
Answer: root of 18
9+9=x^2
18=x^2
x = 3 root of 2 or root of 18