kelie

One cup of clam chowder contains 9g of protein, 12 g of fat, and 16 g of carbohydrates. How many kilocalories are in the clam chowder. My book says the answer is 210 but I keep getting 208 kcal.

Which of the answers for the following conversions contains the correct number of significant figures? A)2.543 m x 39.4in/1m=100.1924in B)2 L x 1.06qt/1L=2.12 qt C)24.95 min x 1hr/60 min=0.4158 hr D)12.0 ft x 12in/1ft x 2.54cm/1in=370cm E)24.0 kg x 1lb/2....

Here are the typical energy(caloric) values for the three food types. Carbs 4 kcal/g fat 9 kcal/g protein 4 kcal/g

but i though d would be rounded to 2 sf, not 3 because of the 12 in. or is that wrong because 12in/ft is not a measured number?