Respuesta :

The key component to remember here is to keep the same significant figures

1)    800,000,000
==> 8 x 100,000,000
==> 8 x 10^8 m

2)    0.0015
==> 1.5 x 0.001
==> 1.5 x 10^-3 kg
mridulupadh
8*10^8 and 1.5*10^-3