A linear programming computer package is needed.

DeCaf, the production cost for the DeCaf blend is $$1\mathrm{.}05$ per pound. Packaging costs for both products are $$0\mathrm{.}25$ per pound

beans purchased to produce DeCaf.$)$

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

s$.$t$.$

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

DeCaf $\%$ constraint

Pounds of Regular $,BR+CR=900$

Pounds of DeCaf $,BD+CD=400$

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

$,$

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