Answer:
The calorie content of a serving of this cereal is 140.7 cal.
Explanation:
We need to multiply the amount of calories per the amount of each nutrient.
Proteins: 3 g and 4.1 cal/g ∴ 3 x 4.1 = 12.3 cal
Carbohydrates: 18 g and 4.1 cal/g ∴ 18 x 4.1 = 73.8 cal
Fats: 6 g and 9.1 cal/g ∴ 6 x 9.1 = 54.6 cal
Now we just need to add the amounts:
Total calorie content = 12.3 + 73.8 + 54.6 = 140.7 cal