To determine which situations have a net sum of 0, we need to look for scenarios where there is an equal exchange or balance, resulting in no net gain or loss.
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Ted has 3 pieces of candy and eats 3 pieces of candy.
- This results in a net sum of 0 because he ends up with none (3 - 3 = 0).
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A carpenter makes the same amount of benches that she sells.
- This also has a net sum of 0 in terms of production and sales because what she makes is exactly what she sells (made - sold = 0).
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Lauren makes 10 bracelets and she gives her friends 10 bracelets.
- In this case, Lauren also has a net sum of 0 in terms of her bracelets because she starts with 10 and gives away all 10 (10 - 10 = 0).
The other scenarios do not constitute a net sum of 0:
- An apple and an orange both cost $0.50. (This scenario does not imply any net sum.)
- A business's income is twice as much as the business's expenses. (This indicates a net gain.)
- A basketball team scores 10 points more than its opponent on 2 consecutive nights. (This indicates a point gain.)
Therefore, the three situations that have a net sum of 0 are:
- Ted has 3 pieces of candy and eats 3 pieces of candy.
- A carpenter makes the same amount of benches that she sells.
- Lauren makes 10 bracelets and she gives her friends 10 bracelets.