Question

Convert 255090m to kg using 6 significant figures.

Answer 1

Sometimes scientific notation is a must.

Answer 2

m is for metres,
kg is for kilograms,

these units cannot be convert to one-another,
because one is a unit of the dimension length,
whereas the other is a unit for the dimension of mass.

Answer 3

Im sorry I mean km* @UnkleRhaukus

Answer 4

This is soo difficult

Answer 5

1 km = 1000 m
Take it from there.

Answer 6

1 000 m = 1 km
so
255 090m = ? km