Answer:
√(225x^7y^9) = 15 sqrt(x^7 y^9)
Step-by-step explanation:
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▹ Answer
<em>12</em>
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▹ Step-by-Step Explanation

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Answer:
9:100
Step-by-step explanation:
Turn 9% into a fraction by putting it over a hundred:
9/100
Then simply change the '/' into ':'
If this were another fraction, let's say, 4/6, then you'd put it in simplest form, which is 2/3 = 2:3