I don't understand the question, but I did get this:

Hope this helps!!
the correct answer for this is the last choice:
It is incorrect because the length of the unknown side is the square root of 7,225.
Answer:
2..25
Step-by-step explanation:
Answer:
245=2.45
7/50=0.14
Step-by-step explanation:
divide by 100
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Answer:
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Step-by-step explanation: