Tasty Resturant sells 4,500 plates of food each week. Among the costs are waitress wages, $25,000; resturant manager salaries, $26,000; food cost, $41,000; baverages ; $ 19,000,packaging and claening supplies costs, $28,000, cooking equipments: $42,000. Using this information, compute: (a) prime costs and (b) conversion costs.