SUPER SALADS makes salad dressings containing oil and vinegar. A litre of Italian dressing generates $1.75 profit and requires .5 litres of oil and .4 litres of vinegar. A litre of French dressing generates $3.12 profit and requires .6 litres of oil and .8 litres of vinegar. SUPER SALADS would like to maximize its profit but only has 20 litres of oil and 17 litres of vinegar left. How many litres of Italian and French salad dressing should SUPER SALADS make? Use the EXCEL Solver feature to solve the problem. Use printscreen to show the results and the formulas, and indicate the conclusion.