per pound for these ingredients is $$0\mathrm{.}96,$ $$0\mathrm{.}64,$ and $$0\mathrm{.}56,$ respectively. The cost of the spices and the other ingredients is approximately $$0\mathrm{.}10$ per jar. Toms, Inc., buys empty glass jars for $$0\mathrm{.}02$ each, and labeling and filling costs are estimated to be $$0\mathrm{.}03$ for each jar of salsa produced. Toms contract with Western Foods results in sales revenue of $$1\mathrm{.}64$ for each jar of Western Foods Salsa and $$1\mathrm{.}93$ for each jar of Mexico City Salsa.a$.$ Develop a linear programming model that will enable Toms to determine the mix of salsa products that will maximize the total profit contribution.b$.$ Find the optimal solution.