what instrument would you use to determine the mass of three apples

triple balance?

Yes thank you

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PS: I learn this in 7th grade science regents.

To determine the mass of three apples, you would use a weighing scale. Here's how you can do it:

1. Start by setting up the weighing scale on a flat and stable surface.
2. Ensure that the scale is calibrated properly and reads zero when there is no weight on it.
3. Take one apple at a time and place them on the scale. Make sure to remove any stickers or additional packaging from the apples.
4. Record the weight of each apple individually. The scale should display the weight in grams, kilograms, or pounds, depending on the measuring unit.
5. Repeat this process for the other two apples, recording their weights as well.
6. Once you have the individual weights, add them together to find the total mass of the three apples.

Keep in mind that the weighing scale should be accurate and reliable to provide accurate measurements.