The number pi is approximately equal to 3.14. Therefore:
[tex]\begin{gathered} 3*3.14-1>9 \\ 8.42>9 \end{gathered}[/tex]
A is false.
Second.
[tex]\begin{gathered} 7*3.14>21 \\ 21.98>21 \end{gathered}[/tex]
B) is true.
Third:
[tex]\begin{gathered} 3.14+4<7 \\ 7.14<7 \end{gathered}[/tex]
C is false.
Finally:
[tex]\begin{gathered} \frac{12}{4*3.14}>1 \\ \frac{3}{3.14}>1 \\ 0.96>1 \end{gathered}[/tex]
D is false.
Answer: The inequality that is true is B).
