The nutrition information on the box of cereal says that a one third cup serving provides 80 calories and six grams of dietary fiber. At that rate find how many calories and grams of fiber are in a half cup serving

120 calories and 9 grams of fiber.

Step-by-step explanation:

We are told that 1/3 cup serving contains 80 calories and 6 grams of fiber.

Let's multiply everything by 3. So,

1 cup serving has 3*80 = 240 calories and 3*6 = 18 grams of fiber.

But, we want to really know about 1/2 cup. So, now we multiply everything by 1/2.

1/2 cup has (1/2) (240) = 40 calories and (1/2) (18 grams) = 9 grams of fiber.

240 calories and 9 grams of fiber