Step-by-step explanation:
[tex]\large{ \star \fcolorbox{magenta}{purple}{ \fcolorbox{magenta}{blue}{ \fcolorbox{magenta}{pink}{ \fcolorbox{magenta}{red}{ \sf{ añswër}}}}}} \star[/tex]
[tex]by \: multiplying \: 1000 in \: 45 \\ = 45 \times 1000 \\ = 45000mg[/tex]
