Answer :
Given
The two parts are given
a. 52.5% of 16.8
b. 215% of what is 89.87.
Explanationa. To determine the number which is 52.5 percent of 16.8.
[tex]\begin{gathered} \frac{52.5}{100}\times16.8=x \\ x=8.82 \\ \end{gathered}[/tex]b. To determine the number that 215% of what is 89.87.
[tex]\begin{gathered} \frac{215}{100}\times x=89.87 \\ x=89.87\times\frac{100}{215} \\ x=41.8 \end{gathered}[/tex]Answera. The number is 8.82 which is 52.5 percent of 16.8.
b. The solution is 41.8.