Answer:
I think it's 0.225
Explanation:
900 × 0.25%= 2.25
2.25÷100=0.0225
2.3
0.25=25/100
%=1/100
And of = ×
25/(100*100)*900
(25/100)*9
25*9/100
225/100
2.25
≈2.3
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