Answer:
3
Step-by-step explanation:
The answer is 3 because if the tenth (.5 in 2.5) is 5 or greater, the decimal would be rounded up.
If the tenth is less than 5 (for example if 2.5 was 2.4 it would be 2)
, the decimal would be rounded down.
So, 2.5 would round up to 3.
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Hope this helps, I did my best explaining. =)
