One slice of cheese pizza contains 290 calories, 15 g of protein, 9 g fat and 39 g of carbohydrates. One half cup of gelatin dessert contains 70 calories, 2 g protein, 0 g fat and 17 g of carbohydrates. One cup of whole milk contains 150 calories, 8 g protein, 8 g fat and 11 g of carbohydrates.
Write 1X4 matrices, P, G, and M that represent the nutritional values of each food. Then find 3P+2G+2M and tell what the entries represent.