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Korianna
Hi there!

18 is 20% of 90. Why, you may ask?

To solve we just divide both sides by 0.2

We would start off with 0.2x = 18.
NOW divide.
x = 90.

We can check this by seeing that 20% of 90 is equal to 18.

Hope this helps!
its 3.6  because you take 20%=20%/100% =0.2

20%=0.2

multiply 0.2 by 18      0.2*18= 3.6 i hope this help you :)

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