In Exercises , formulate the linear or piecewise linear model for the real-life scenario....

In Exercises , formulate the linear or piecewise linear model for the real-life scenario. If a linear model represents a directly proportional Relationship between the independent and dependent variables, so state.

Nutrition The Recommended Daily Allowance (RDA) for fat for a person on a 2,500-calorie-per-day diet is less than 80 grams. A McSalad Shaker Chef Salad® contains 8 grams of fat. A package (44.4 ml) of ranch salad dressing contains 18 grams of fat. (Source: www.mcdonalds.com.)

(a) Write the equation for fat grams as a function of Chef Salads.

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(b) How many salads can you eat and remain below the RDA for fat?

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(c) If you use one package of ranch salad dressing, how many salads can you eat and remain below the RDA for fat?

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(d) The RDA for fat for a person on a 2000-calorie diet is 65 grams. If a person on a 2,000-calorie diet uses one package of ranch salad dressing, how many salads can that person eat and remain below the RDA for fat?