How do I match these to each expression point on the number line?

1) Let's find out the approximate numbers for those irrational numbers
[tex]\begin{gathered} a)\text{ -}\sqrt[]{18}=-4.24 \\ b)-\frac{17}{3}=-5.67 \\ c)\text{ -2}\pi=\text{ -6.28} \end{gathered}[/tex]2) Then examining the number line, the points the best fit are
a) -2π ( -6.28)
b) -17/3 (-5.67)
c) -√18 = -4.24