A slice of pizza contains 29 g of carbohydrate, 13 g of protein and an unknown amount of fat. If the pizza contains 280 kcal, how many grams of fat are present? (The caloric values for foods are 4.0 kcal/g for carbohydrate, 4.0 kcal/g for protein, and 9.0 kcal/g for fat.) Round off the answer for each food type to the tens place. Group of answer choices 250 g 25 g 55 g 10. g 12 g