28% of 80 is what number?
\(28\%\cdot80=0.28\cdot80=22.4\Rightarrow A\)
p%=\(\frac{p}{100}\)\(\frac{28}{100}= \frac{28\div4}{100\div4}= \frac{7}{25}\)\(\frac{7}{25}*80= \frac{560}{25} = \boxed {22,4}\)
