621,584 round to the nearest ten

621,580

and i have to add at least 20 characters so how is everyone’s day?

621,580

Step-by-step explanation:

nearest 10 means finding which 10 they are nearest to. and 84 is rounded to 80 because the number is not 85 or higher if that makes sense.

no, x cannot be the same number. in all of them, x is 1. for one input there is another output. g is not a function

give brainliest