The calorie count of a serving of food can be computed based on its composition of carbohydrate, fat, and protein. The calorie count C for a serving of food can be computed using the formula
Upper C equals 4 h plus 9 f plus 4 p
C=4h+9f+4p, where h is the number of grams of carbohydrate contained in the serving, f is the number of grams of fat contained in the serving, and p is the number of grams of protein contained in the serving.

A serving of a certain type of nut contains
15
15 grams of fat,
7
7 grams of carbohydrate, and
5
5 grams of protein. How many calories are in this serving of nuts?
There are

nothing
calories in this serving of nuts.