Respuesta :

There are 6.4008 meters in 21 feet.
Willchemistry
Hey there!:

1 meter --------------- 3.28084 feet
? meters -------------- 21 feet 

therefore:

 ( 21 * 1 ) /  ( 3.28084 )  =

21 / 3.28084 => 6.4008 meters 

hope this helps!