A linear programming computer package is needed.

pays for the beans. The current market price is $$0\mathrm{.}47$ per pound for Brazilian Natural and $$0\mathrm{.}62$ per pound for Colombian Mild. The compositions of each coffee blend are as follows.

beans purchased to produce DeCaf, $CR=$ pounds of Colombian beans purchased to produce Regular, and $CD=$ pounds of Colombian beans purchased to produce DeCaf.$)$

Max

$x$

Check which variable$($s$)$ should be in your answer.

s$.$t$.$

Regular $\%$ constraint

Enter an equation.

DeCaf $\%$ constraint

Enter an equation

Pounds of Regular

Enter an equation

Pounds of DeCaf

Enter an equation.

$($b$)$ What is the optimal solution?

$(BR,BD,CR,CD)=$

$()$

$($c$)$ What is the contribution to profit $($in $$)?($Round your answer to two decimal places.$)$

$