please answer these questions I need this

Answer:
Box A ( 8.256 kg = 8.26 kg )
Box B ( 8.2254 kg = 8.23 kg )
4. When compared, Box A is heavier than Box B by a mere 0.03 kg.
Answer:
8.2254 kg will become 8.23 kg (Box B)
4. Box A is heavier than Box B.
Step-by-step explanation:
Note:
Example:
Place value of 1: