OF PUFF-X CEREAL
The table above gives the number of calories from the three different sources of calories in Puff-X cereal, and the energy yield in calories per gram for each of those sources. If one serving of Puff-X contains 110 calories, then grams of fat make up what percent of the total mass, in grams, of a serving of Puff-X?
What does “puff up” in the first paragraph (Line 2) mean?