A linear programming computer package is needed.

pound for Brazilian Natural and $$0\mathrm{.}62$ per pound for Colombian Mild. The compositions of each coffee blend are as follows.

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

Max $2\mathrm{.}033BR+2\mathrm{.}583BD+1\mathrm{.}868CR+2\mathrm{.}418CD$

s$.$t$.$

Regular $\%$ constraint $\mathrm{.}25BR-\mathrm{.}75CR=0$

DeCaf $\%$ constraint $,\mathrm{.}60BD-\mathrm{.}40CD=0$

Pounds of Regular $,BR+CR=1100$

Pounds of DeCaf $,BD+CD=600$

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

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

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

$$4665$