help me please ! Also dont be offended if i message back saying why it might be wrong

Answer:
[tex]1mm = 0.001m \\ 1000mm = 1m \\ 1cm = 0.01m \\ 100cm = 1m \\ 1km = 1000m \\ 0.001km = 1m \\ 1cm = 10mm \\ 0.1cm = 1mm \\ \\ m \: \: meter \\ cm \: \: centimeter \\ mm \: \: millimeter \\ km \: \: kilometer[/tex]