Explanation:
To find the number of calories in a serving of nuts, we can use the formula given: C = 4H + 9F + 4P, where C represents the calorie count, H represents the grams of carbohydrates, F represents the grams of fat, and P represents the grams of protein.
Given that the serving of nuts contains 13 grams of fat (F), 9 grams of carbohydrates (H), and 6 grams of protein (P), we can substitute these values into the formula:
C = 4(9) + 9(13) + 4(6)
Calculating further:
C = 36 + 117 + 24
C = 177 + 24
C = 201
Therefore, there are 201 calories in a serving of nuts.