Which of the following story problems can be solved by calculating 3/4-1/2? (Select all that apply.) Select one: O a. A bird feeder was filled with 3/4 of a full bag of bird seed. The birds ate 1/2 of what was in the bird feeder. What fraction of a full bag of bird seed did the birds eat? O b. A bird feeder was filled with 3/4 of a full bag of bird seed. The birds ate 1/2 of what was in the bird feeder. What fraction of a full bag of bird seed is left in the bird feeder? Oc. Charlie has 3/4 of a full bag of bird seed. He has a bird feeder that holds half a full bag. What fraction of a full bag of bird seed will be left in the bag after he fills the bird feeder? O d. None of the story problems can be solved by calculating 3/4-1/2.
