Use rule of three:
A.
[tex]\begin{gathered} \frac{x}{9}=\frac{100}{27} \\ \\ x=9\cdot\frac{100}{27} \\ \\ x=33.33 \end{gathered}[/tex]
Then, 9 is 33.33% of 27
B.
[tex]\begin{gathered} \frac{x}{100}=\frac{6}{60} \\ \\ x=100\cdot\frac{6}{60} \\ \\ x=10 \end{gathered}[/tex]
Then, 6 is the 60% of 10
C.
[tex]\begin{gathered} \frac{x}{50}=\frac{70}{100} \\ \\ x=50\cdot\frac{70}{100} \\ \\ x=35 \end{gathered}[/tex]
Then, 35 is the 50% of 70
