How many grams of protein in 3 oz chicken breast
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A 3-oz serving of roasted, skinless chicken breast contains 140 Cal, 27 g of protein, 3 g of fat, 13 mg of calcium, and 64 mg of sodium. One-half cup of potato salad contains 180 Cal, 4 g of protein, 11 g of fat, 24 mg of calcium, and 662 mg of sodium. One broccoli spear contains 50 Cal, 5 g of protein, 1 g of fat, 82 mg of calcium, and 20 mg of sodium.
a) Write 1x5 matrices C, P, and B that represent the nutritional values of each food.
b) Find C+2P+3B and tell what the entries represent.