Respuesta :

I'm not sure if that is a 10 or 1O so i'll do it both ways: 
With the O:
8.4[tex] O^{6} [/tex] 

With a 0:  
Exact: 8.4*1[tex] 0^{6} [/tex] 
Decimal: 8400000 
Hope that helps!! Have a wonderful day!! If you ever need anything feel free to ask me!!