Answer:
[tex]9\times10^2cm[/tex]
[tex]9\times10^6 \mu m[/tex]
[tex]9\times10^9nm[/tex]
Step-by-step explanation:
1 m = 100 cm
9 m = 100cm * 9 = 900 cm or [tex]9\times10^2cm[/tex]
[tex]1 m = 10^6 \mu m[/tex]
[tex]9 m = 9\times10^6 \mu m[/tex]
[tex]1 m = 10^9 nm[/tex]
[tex]9 m = 9\times10^9 nm[/tex]