Your answer should have the same number of significant figures is the start of measurement 400.08ml —— l

The answer would be .40008L

The word milli- translates to  units. In this case, we have liters as our base unit. So a milliliter is Liters or you can say that there are:

1,000 mL in 1 L. 

As I understand, you are trying to convert 400.08mL to L. 

So this is how you are going to get it:

x 
=

Man i dont know this answer