16 is 25% of what number???
16 is 25% of 64. 64 x .25=16
\(1 \% =\frac{1}{100} \\ \\ 25 \% \cdot x =16 \\ \\\frac{25}{100}x =16\\ \\\frac{1}{4}x =16 \ \ /*4 \\ \\x=16*4 \\ \\x=64\)