#include

int main$()\{$

$//$ Define the values for the expression

double result $=(-0\mathrm{.}045*3\mathrm{.}8+2\mathrm{.}1*0\mathrm{.}31)/(0\mathrm{.}52-0\mathrm{.}078)$;

$//$ Display the expression and the result

cout $<<"(-0\mathrm{.}045*3\mathrm{.}8+2\mathrm{.}1*0\mathrm{.}31)/(0\mathrm{.}52-0\mathrm{.}078)="<<$ result $<<$ endl;

return $0$;

$\}$