3 answers
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In a bread recipe, the amount of flour specified should be a non-negative number, as you cannot use a negative amount of an ingredient. Therefore, among the given options:
- **Negative 3**: Not valid (negative)
- **Square root of 3**: Positive but not a whole number, so it could be used in a recipe but might be less practical.
- **2 3/4**: Valid (positive and can be used as a measurement in cups)
- **4/7**: Valid (positive and can be used as a measurement in cups)
The numbers that could be used to specify how many cups of flour should be used are **2 3/4** and **4/7**.