hello
to solve this question, we simply need to convert the volume of the water in litres to mililiters
[tex]\begin{gathered} 1L=10^3mL \\ \end{gathered}[/tex][tex]\begin{gathered} 1L=10^3mL \\ 4L=\text{xmL} \\ x=4\times10^3=4\times10^3mL= \end{gathered}[/tex]from the calculation above, the volume of the water is 4*10^3mL