Answer:
21,000
Step-by-step explanation:
Our [tex]hundreds[/tex] digit is [tex]9[/tex]
[tex]9[/tex] rounded upward would be [tex]10[/tex]
Ten is in a different unit than nine, since 10 is in the tens place, and 9 is in the ones place. Our answer wouldn't be 201000 because that just wouldn't make sense. So our answer would be 21,000
